que se leu este artigo
array:22 [ "pii" => "S0365059623000958" "issn" => "03650596" "doi" => "10.1016/j.abd.2022.10.009" "estado" => "S300" "fechaPublicacion" => "2023-09-01" "aid" => "764" "copyright" => "Sociedade Brasileira de Dermatologia" "copyrightAnyo" => "2023" "documento" => "article" "crossmark" => 1 "subdocumento" => "fla" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "Traduccion" => array:1 [ "pt" => array:18 [ "pii" => "S2666275223001224" "issn" => "26662752" "doi" => "10.1016/j.abdp.2023.04.011" "estado" => "S300" "fechaPublicacion" => "2023-09-01" "aid" => "764" "copyright" => "Sociedade Brasileira de Dermatologia" "documento" => "article" "crossmark" => 1 "subdocumento" => "fla" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "pt" => array:12 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Educação médica continuada</span>" "titulo" => "Metástases cutâneas de neoplasias sólidas – Revisão de literatura" "tienePdf" => "pt" "tieneTextoCompleto" => "pt" "tieneResumen" => "pt" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "571" "paginaFinal" => "579" ] ] "contieneResumen" => array:1 [ "pt" => true ] "contieneTextoCompleto" => array:1 [ "pt" => true ] "contienePdf" => array:1 [ "pt" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figura 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1605 "Ancho" => 1508 "Tamanyo" => 276747 ] ] "descripcion" => array:1 [ "pt" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Paciente com metástases cutâneas de melanoma com lesão tumoral ulcerada e diversas pápulas e nódulos satélites no pé</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Bruno de Castro e Souza, Denis Miyashiro, Marcella Soares Pincelli, José Antonio Sanches" "autores" => array:4 [ 0 => array:2 [ "nombre" => "Bruno de Castro e" "apellidos" => "Souza" ] 1 => array:2 [ "nombre" => "Denis" "apellidos" => "Miyashiro" ] 2 => array:2 [ "nombre" => "Marcella Soares" "apellidos" => "Pincelli" ] 3 => array:2 [ "nombre" => "José Antonio" "apellidos" => "Sanches" ] ] ] ] ] "idiomaDefecto" => "pt" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S0365059623000958" "doi" => "10.1016/j.abd.2022.10.009" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0365059623000958?idApp=UINPBA00008Z" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2666275223001224?idApp=UINPBA00008Z" "url" => "/26662752/0000009800000005/v1_202307310652/S2666275223001224/v1_202307310652/pt/main.assets" ] ] "itemSiguiente" => array:18 [ "pii" => "S0365059623000855" "issn" => "03650596" "doi" => "10.1016/j.abd.2022.07.009" "estado" => "S300" "fechaPublicacion" => "2023-09-01" "aid" => "754" "copyright" => "Sociedade Brasileira de Dermatologia" "documento" => "article" "crossmark" => 1 "subdocumento" => "fla" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "en" => array:12 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Original Article</span>" "titulo" => "A novel homozygous nonsense mutation in NECTIN4 gene in a Pakistani family with ectodermal dysplasia syndactyly syndrome 1" "tienePdf" => "en" "tieneTextoCompleto" => "en" "tieneResumen" => "en" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "580" "paginaFinal" => "586" ] ] "contieneResumen" => array:1 [ "en" => true ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 1502 "Ancho" => 2508 "Tamanyo" => 238797 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Facial photographs of affected individuals (V-3) and (V-4) are shown in panel A and B respectively. Sparse scalp hair, sparse eyebrows and eyelashes and deformed pinnae of both ears are clearly evident</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Bibi Hajra, Abdullah, Nousheen Bibi, Fibhaa Syed, Asmat Ullah, Wasim Ahmad, Umm-e-Kalsoom" "autores" => array:7 [ 0 => array:2 [ "nombre" => "Bibi" "apellidos" => "Hajra" ] 1 => array:1 [ "apellidos" => "Abdullah" ] 2 => array:2 [ "nombre" => "Nousheen" "apellidos" => "Bibi" ] 3 => array:2 [ "nombre" => "Fibhaa" "apellidos" => "Syed" ] 4 => array:2 [ "nombre" => "Asmat" "apellidos" => "Ullah" ] 5 => array:2 [ "nombre" => "Wasim" "apellidos" => "Ahmad" ] 6 => array:1 [ "apellidos" => "Umm-e-Kalsoom" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "pt" => array:9 [ "pii" => "S2666275223001005" "doi" => "10.1016/j.abdp.2023.04.001" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "pt" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2666275223001005?idApp=UINPBA00008Z" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0365059623000855?idApp=UINPBA00008Z" "url" => "/03650596/0000009800000005/v1_202307281023/S0365059623000855/v1_202307281023/en/main.assets" ] "en" => array:19 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Continuing Medical Education</span>" "titulo" => "Cutaneous metastases from solid neoplasms – Literature review" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "571" "paginaFinal" => "579" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "Bruno de Castro e Souza, Denis Miyashiro, Marcella Soares Pincelli, José Antonio Sanches" "autores" => array:4 [ 0 => array:4 [ "nombre" => "Bruno de Castro e" "apellidos" => "Souza" "email" => array:1 [ 0 => "bruno.csouza@hc.fm.usp.br" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:2 [ "nombre" => "Denis" "apellidos" => "Miyashiro" ] 2 => array:2 [ "nombre" => "Marcella Soares" "apellidos" => "Pincelli" ] 3 => array:2 [ "nombre" => "José Antonio" "apellidos" => "Sanches" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Department of Dermatology, Hospital das Clínicas, Universidade de São Paulo, São Paulo, SP, Brazil" "identificador" => "aff0005" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1605 "Ancho" => 1508 "Tamanyo" => 275462 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Patient with cutaneous metastases of melanoma with an ulcerated tumor lesion and several papules and satellite nodules on the foot</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Cutaneous metastases from solid tumors are uncommon events in clinical practice. It is estimated that between 0.7% and 9% of metastases from these tumors occur in the skin.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Most of the time, the patient already has a diagnosis of malignant neoplasm when the cutaneous metastasis is detected. However, in up to one-third of cases, skin metastasis is identified before the primary tumor.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> In some cases, the identification of the cutaneous metastasis indicates cancer recurrence, and in 79% of cases, there are concurrent visceral metastases.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> The clinical presentation is diverse and can simulate inflammatory diseases, benign tumors, or even malignant skin tumors. This review discusses the current paradigm of metastasis mechanisms and displays the main clinical presentations. For didactic reasons, clinical presentations will be discussed according to the primary tumor site, including the ones originally from the skin. Paraneoplastic manifestations and hematological malignancies will not be reviewed in this article.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Etiopathogenesis</span><p id="par0015" class="elsevierStylePara elsevierViewall">Metastasis is defined as the development of a tumor at some distance from the primary site. It develops predominantly by vascular invasion (lymphatic or hematogenous). There is a discussion in the literature whether implants should be considered as actual metastases either by contiguity or iatrogenically. Currently, the metastatic process is understood as a complex phenomenon that occurs in parallel with the development of the primary tumor. Due to its greater importance, metastases through vascular invasion will be discussed in more detail.</p><p id="par0020" class="elsevierStylePara elsevierViewall">The pathophysiology of metastasis is divided into six stages: (1) local invasion, (2) intravasation, (3) survival in the circulation, (4) arrest in a distant organ, (5) extravasation, (6) micrometastasis formation and metastatic colonization.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Local invasion</span><p id="par0025" class="elsevierStylePara elsevierViewall">After the development of the malignant tumor in the primary site, local invasion occurs. This event consists of the entry of malignant cells into the soft tissue adjacent to the tumor. For this to occur, disruption of the basement membrane secondary to the action of matrix metalloproteinases is necessary.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Intravasation</span><p id="par0030" class="elsevierStylePara elsevierViewall">Intravasation is a complex phenomenon that allows malignant cells to enter the blood or lymphatic vessels. This process is essential for malignant cells to reach distant sites and continue the metastatic process. It has been well-described that malignant tumors have the ability to produce neoangiogenesis.<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> What happens is that the neoformed vessels have little coverage of pericytes and endothelial cells with little cell adhesion, facilitating the entry of malignant cells (intravasation).<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a> Curiously, more recent evidence demonstrates that this phenomenon occurs predominantly during sleep.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a></p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Survival in circulation</span><p id="par0035" class="elsevierStylePara elsevierViewall">Once inside the vessels, the malignant cells need to survive. They are subject to trauma resulting from hemodynamic forces and, in addition, are subject to the immune system action. The main adaptive way to evade these mechanisms is the formation of platelet microthrombi around the neoplastic cells, which protect them from these phenomena.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Arrest in a distant organ</span><p id="par0040" class="elsevierStylePara elsevierViewall">Tumors can reach virtually any tissue in the body through blood or lymphatic circulation. The major question is why some tumors have preferential metastasis sites.<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a> For instance, there is a clear preference for bone in prostate cancer metastases or, in cases of colon tumors, metastases to the liver.<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> A strong interaction between the primary tumor and the target site soft tissue is believed to be necessary.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> Although the skin is a highly vascularized organ, few tumors, such as melanoma, have an obvious predilection for it. Perhaps this is due to good immunological protection or low soft tissue-malignant tumor interaction.</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Extravasation</span><p id="par0045" class="elsevierStylePara elsevierViewall">After reaching the target organ circulation, malignant cells must exit the vessels to reach the soft tissue. This process may occur due to mechanical vascular rupture or a more complex process. In the latter case, tumor cells might induce vascular hyperpermeability secondary to the release of proteins such as epiregulin (EREG), cyclooxygenase 2 (COX-2), metalloproteinase 1 and 2 (MMP-1 and MMP-2).<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> It is important to emphasize that each protein has a specific action on the vascularization of each target organ, reinforcing the idea that each malignant tumor has one or more preferential metastasis sites.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Micrometastasis formation and metastatic colonization</span><p id="par0050" class="elsevierStylePara elsevierViewall">The last step is tumor survival in the target site soft tissue. For this to occur, the tumor needs to have a self-renewal and proliferation capacity. Additionally, it releases substances that make the adjacent soft tissue more receptive to its multiplication.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> Micrometastases may persist in a latent state for months or years. During this period, micrometastases that acquire genetic or epigenetic alterations and can make the microenvironment more favorable to their development with the formation of macroscopic metastases with significant lethal potential.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p></span></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Epidemiology</span><p id="par0055" class="elsevierStylePara elsevierViewall">There is divergence in the literature about which tumors most frequently metastasize to the skin. More recent studies indicate that melanoma is the most frequent one, but in some classic studies, this neoplasm appears only in the fourth place.<a class="elsevierStyleCrossRefs" href="#bib0050"><span class="elsevierStyleSup">10,11</span></a> A 2002 meta-analysis identified that breast tumors are the most frequent ones (24%) followed by kidney (4%), ovary (3.8%), bladder (3.6%), lung (3.4%), colorectal (3.4%), and prostate (0.7%) cancer.<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a> However, cases of melanoma were excluded from this study.</p><p id="par0060" class="elsevierStylePara elsevierViewall">There is an epidemiological difference according to sex. A Brazilian study with 209 cases of cutaneous metastases identified that the most frequent cutaneous metastases in women originated from breast (63.19%), large intestine (10.41%), and lung cancer (4.16%) whereas in men, the order of frequency was lung, stomach, and larynx (33.84%, 12.3%, and 7.69%, respectively).<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> When specifically analyzing the pediatric population, the most frequent primary tumors are rhabdomyosarcoma and neuroblastoma.<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a></p><p id="par0065" class="elsevierStylePara elsevierViewall">It is a well-known fact that there are some areas of the skin where the appearance of metastatic lesions is more frequent. The anterior thorax is the most common site, followed by the abdomen, head and neck (including the scalp), and limbs.<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11–13</span></a> There is a clear predilection for the affected site according to the primary tumor; therefore, the cutaneous metastasis site may indicate a possible neoplastic origin. For instance, breast cancer most often metastasizes to the anterior thorax, whereas gastrointestinal tract tumors secondarily most often affect the abdomen.<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a> summarizes the preferred sites of skin metastases.</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Clinical presentation</span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Skin</span><p id="par0070" class="elsevierStylePara elsevierViewall">Several originally cutaneous malignant neoplasms can develop metastases to the skin. Of these, the most frequent is melanoma and, for that reason, it will be discussed in more detail. However, it is important to emphasize that squamous cell carcinoma, Merkel cell carcinoma, and even malignant pilomatricoma can develop skin metastases.<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">11</span></a></p><p id="par0075" class="elsevierStylePara elsevierViewall">A North-American study has shown that the number of cutaneous metastases from melanoma has been increasing in recent years.<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> This is not a rare event in the natural history of the disease. Secondary skin involvement occurs in 10% to 17% of patients with melanoma and is present in up to 50% of individuals with disseminated disease.<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> In most cases, the skin is the first site of metastatic involvement and, in about 30% of cases, it occurs after lymph node metastasis.<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> The concomitant finding of cutaneous, nodal, and visceral metastasis occurs in approximately 10% of cases.<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a></p><p id="par0080" class="elsevierStylePara elsevierViewall">Cutaneous melanoma metastases are divided into microsatellite, satellite, in-transit or distant metastases. The first is microscopic metastasis (cutaneous or subcutaneous) disconnected from the primary tumor, therefore, it is not perceived in the clinical examination. A satellite metastasis is a metastatic tumor visible up to 2 cm from the primary tumor site. In-transit metastasis is defined as any cutaneous or subcutaneous metastasis that is more than 2 cm away from the primary lesion but within the regional lymphatic drainage.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> Despite this differentiation, both satellite lesions and in-transit metastasis correspond to intralymphatic spread and have similar therapeutic and prognostic implications.<a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a> It is also important to differentiate lymph node metastases from local recurrence that occurs as a result of incomplete resection of the primary tumor.</p><p id="par0085" class="elsevierStylePara elsevierViewall">Distant metastasis is related to hematogenous spread and occurs when the cutaneous metastatic site is far from the lymphatic drainage focus of the primary tumor. This differentiation is important, as in the first two scenarios the patient is considered to have locoregional disease, whereas, in the latter, the patient has distant metastasis, which considerably worsens the patient’s prognosis.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> Melanoma staging is beyond the scope of this article and therefore will not be discussed.</p><p id="par0090" class="elsevierStylePara elsevierViewall">Cutaneous metastases from melanoma are most commonly found on the back in men and on the lower limbs in women. The fact that secondary cutaneous locations occur in the same anatomical location as the initial cutaneous location in more than 30% of cases explain the distinct patterns of metastases between sexes.<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> Clinically, there are generally black or brownish dermal or subcutaneous papules or nodules that may ulcerate (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>).<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> Eventually, they can be amelanotic and reach large dimensions, leading to significant morbidity.<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> In the case of in-transit metastases, they are usually located between the primary tumor site and the regional lymph node. However, in some situations, they may arise on the opposite side, due to a change in lymphatic flow secondary to the tumor presence. <a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a> More atypical cases, such as erythematous plaques (erysipela-like), sclerosing (<span class="elsevierStyleItalic">en cuirasse</span>), purpuric, and telangiectatic lesions have been described.<a class="elsevierStyleCrossRef" href="#bib0110"><span class="elsevierStyleSup">22</span></a> There are also reports of zosteriform metastases with vesiculobullous lesions and nodules distributed across a dermatome.<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a></p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Breast</span><p id="par0095" class="elsevierStylePara elsevierViewall">Most cases of breast cancer cutaneous metastasis are due to adenocarcinomas (77%–82%).<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17,24</span></a> They usually arise in the anterior thorax due to regional lymphatic spread.<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">25</span></a> Clinically, the most common form of presentation comprises normochromic papules or nodules. However, some well-characterized presentations are described, namely: telangiectatic carcinoma, erysipeloid carcinoma, carcinoma <span class="elsevierStyleItalic">en cuirasse</span> and neoplastic alopecia.<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a></p><p id="par0100" class="elsevierStylePara elsevierViewall">Telangiectatic carcinoma presents with violaceous papules on a telangiectatic surface, arising close to the previous mastectomy scar. Less commonly, papulovesicular lesions similar to circumscribed lymphangioma appear.<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">27</span></a> Erysipeloid (or inflammatory) carcinoma appears as erythematous, warm, plaques with well-demarcated borders, affecting the breast and adjacent skin (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>).<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a> Marneros et. al. have shown that telangiectatic carcinoma spread occurs predominantly via blood vessels, whereas in erysipeloid carcinoma the spread is lymphatic.<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">27</span></a> In carcinoma <span class="elsevierStyleItalic">en cuirasse</span>, the skin acquires an infiltrated hardened appearance, similar to scleroderma. Finally, in neoplastic alopecia, there are nodules or hardened plaques on the scalp, which result in alopecia.<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a> The alopecia can be cicatricial and irreversible, as neoplastic cells can destroy hair follicles and induce fibroplasia.<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">28</span></a> As with melanoma, cases with papules arranged in a zosteriform pattern have also been described.<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a> It is noteworthy that presentations similar to telangiectatic, <span class="elsevierStyleItalic">en cuirasse</span>, erysipeloid carcinoma, and mucinous alopecia have been described in metastases from other tumors, but are more commonly secondary to breast adenocarcinoma.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a></p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0105" class="elsevierStylePara elsevierViewall">As for prognosis, Hu et. al. demonstrated that the mean survival of patients with breast cancer and cutaneous metastasis is 57 months, and only 25 months among those with concomitant visceral metastasis.<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">29</span></a></p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Lung</span><p id="par0110" class="elsevierStylePara elsevierViewall">Lung cancer metastases are most often seen in the liver, bones, central nervous system, adrenal glands, and mediastinal lymph nodes, with cutaneous metastasis being rare.<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">30</span></a> It is estimated that between 1% to 12% of patients with lung cancer have cutaneous metastases.<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">30,31</span></a> When analyzing all types of cutaneous metastases, patients with lung cancer metastases have the worst prognosis.<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">32</span></a> Although they can affect any site on the skin, they preferentially affect the head and neck, anterior thorax, and abdomen. As with breast cancer, adenocarcinoma is the most common metastatic type, followed by squamous cell carcinoma, while small cell lung cancer is the least frequent one.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> The primary tumor is usually located in the upper pulmonary lobes.<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">30,31</span></a></p><p id="par0115" class="elsevierStylePara elsevierViewall">Clinically, they are indistinguishable from metastases from tumors with other origins. They usually present as normochromic or slightly erythematous subcutaneous nodules, hardened and adhered to deep planes (<a class="elsevierStyleCrossRef" href="#fig0015">Fig. 3</a>). Most of the time they appear as solitary lesions, but multiple lesions can appear subsequently. There are reports of metastases simulating keratoacanthomas,<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> erythematous nodules located at the tip of the nose (“clown nose”),<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">34</span></a> with a zosteriform pattern of distribution or simulating erysipelas.<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">35</span></a> A little-known involvement is the subungual type. A literature review showed that subungual metastasis occurs more frequently in patients with lung (41%), genitourinary (17%), and breast (9%) cancer.<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">36</span></a> These metastases manifest as subungual erythematous-violaceous nodules or as edema, erythema, and pain in the distal phalanges simulating an infectious condition.<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">36</span></a></p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0120" class="elsevierStylePara elsevierViewall">It is noteworthy that most of the time when there is cutaneous metastasis, other extrapulmonary sites are often also detected.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a></p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Gastrointestinal tract</span><p id="par0125" class="elsevierStylePara elsevierViewall">Among the malignant neoplasms of the gastrointestinal tract, colorectal adenocarcinoma is the one that most often leads to cutaneous metastases.<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a> At the time of the diagnosis, about 10% of the cases already have distant metastasis, and the most commonly affected sites are the liver, lungs and central nervous system.<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">37</span></a> It is estimated that about 4% of patients with colorectal cancer progress to cutaneous metastasis, and the mean time from the diagnosis to metastasis onset is 25 months.<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17,38</span></a> The mean age at the metastasis diagnosis is 55 years.<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">39</span></a></p><p id="par0130" class="elsevierStylePara elsevierViewall">Skin involvement can occur either by contiguity, lymphatic or hematogenous spread, or by spread along embryonic remnants, such as the urachus.<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">40</span></a> For this reason, the skin of the abdomen is the most frequently affected cutaneous site, followed by the presacral and perineal region, with the latter being more often related to rectal cancer.<a class="elsevierStyleCrossRef" href="#bib0190"><span class="elsevierStyleSup">38</span></a> In one study, most cutaneous metastases arose from the colectomy surgical incision sites.<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> Nonetheless, there are reports of spread to the most diverse locations, such as the thorax, upper limbs, and head and neck region.<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">40</span></a> When the metastasis affects the umbilical region, it is called Sister Mary Joseph’s nodule.<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">41</span></a> This finding is not pathognomonic of colorectal tumors, as it has been reported in other malignant tumors such as stomach, ovary, pancreas, and even uterine cervix, gallbladder, and small bowel cancer.<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">41</span></a></p><p id="par0135" class="elsevierStylePara elsevierViewall">There is no characteristic clinical presentation, with most appearing as pink or reddish, firm nodular lesions that may ulcerate.<a class="elsevierStyleCrossRef" href="#bib0190"><span class="elsevierStyleSup">38</span></a> Other described presentations are epidermal cyst-like lesions, neurofibromas, annular erythema, condylomas, elephantiasis nostra verrucosa, and areas of alopecia.<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17,40</span></a> In the case of Sister Mary Joseph’s nodule, there are typically firm nodules measuring 0.5 to 2 cm, which may eventually show purulent, serous, or bloody secretion.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a></p><p id="par0140" class="elsevierStylePara elsevierViewall">In the case of gastric tumors, signet-ring cell carcinoma is the most common to show cutaneous metastasis.<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">42</span></a> As with colorectal adenocarcinoma, the abdomen is the most commonly affected site and clinically may present as nodules, erysipela-like lesions, or epidermal cyst-like lesions.<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">42</span></a> The prognosis is very poor in both metastases, with a mean survival of a few months.</p><p id="par0145" class="elsevierStylePara elsevierViewall">Finally, there have been rare reports of cutaneous metastases from malignant neoplasms of the esophagus, pancreas, and liver.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a> In these cases, the lesions were identified in different sites, such as the scalp, abdomen, and dorsum region.</p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Genitourinary system</span><p id="par0150" class="elsevierStylePara elsevierViewall">Of the cancers of the urinary system, renal cancer is the most common one. As renal cell carcinoma displays few signs and symptoms, most are diagnosed in later stages when metastases already exist.<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">44</span></a> In these metastatic cases, the skin is the site of the metastasis less than 2% of the time, with clear cell renal carcinoma being the most common histopathological subtype.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> In most cases, the patient already has a diagnosis of renal cancer when the cutaneous metastasis is identified (six to five years after the diagnosis), but in up to 20% of cases, the cutaneous lesion appears before the identification of the primary renal tumor.<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">45</span></a></p><p id="par0155" class="elsevierStylePara elsevierViewall">The head and neck region is frequently affected by metastases from renal cell carcinoma. The current theory explains that renal veins have anastomoses with the vertebral plexuses, which in turn are connected to the cephalic vasculature. This would allow the hematogenous spread of renal neoplastic cells to the head and neck region.<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">46</span></a> It is important to emphasize that renal cell carcinoma, as well as follicular thyroid carcinoma and hepatocellular carcinoma preferentially show hematogenous spread.<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">46</span></a></p><p id="par0160" class="elsevierStylePara elsevierViewall">Cutaneous metastases from renal cell carcinoma present as rapidly growing nodules that may be normochromic or more characteristically reddish. This is due to high tumor vascularity and therefore can be confused with hemangiomas, ruby angiomas, or pyogenic granulomas.<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">47</span></a> The presence of metastasis is a marker of worse prognosis and survival expectancy is about six months.</p><p id="par0165" class="elsevierStylePara elsevierViewall">More rarely, cases of cutaneous metastasis of bladder urothelial carcinoma are described with a mean survival of fewer than 12 months. In most cases, cutaneous involvement occurs through direct tumor invasion, but it may also be secondary to vascular spread (lymphatic or hematogenous) or iatrogenic implantation (following procedures such as cystectomy).<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">48</span></a> Therefore, in most cases, the lesion is located in the lower abdomen, pelvis or scrotum. The clinical presentation is non-specific and may be as single or multiple nodules, infiltrated plaques, or even showing a sclerosing appearance.<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">49</span></a> Finally, Savell et. al. described a case of urothelial carcinoma manifesting as livedo racemosa due to vascular occlusion.<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a></p><p id="par0170" class="elsevierStylePara elsevierViewall">Cutaneous metastases from gynecological (excluding breast) tumors may account for up to 8.5% of secondary implants in female patients.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a> Most cases are derived from malignant ovarian neoplasms, but they can also originate from uterine cervix cancer. For anatomical reasons, the abdomen (especially the umbilicus) is the most commonly affected site.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a> As for males, it is known that prostate cancer, which is very frequent, rarely courses with cutaneous metastases.<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">11</span></a></p></span><span id="sec0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Head and neck</span><p id="par0175" class="elsevierStylePara elsevierViewall">Head and neck squamous cell carcinomas have the lung and bones as the most common sites of distant metastasis. Pitman et. al., in a cohort of 2,491 patients with head and neck squamous cell carcinoma, identified only 19 (0.763%) with cutaneous metastasis.<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">51</span></a> Yoskovitch et al. al. identified 19 cases (2.4%) of cutaneous metastases among 798 cases of head and neck squamous cell carcinoma.<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a> It is important to note that in these studies, cases of cutaneous involvement due to tumor contiguity were excluded, and only those with distant metastasis were included.</p><p id="par0180" class="elsevierStylePara elsevierViewall">Squamous cell carcinomas of the oral cavity, particularly the mouth floor, are the ones that most often lead to cutaneous metastases.<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a> The neck, scalp, and anterior thorax are the sites affected in 63%, 15%, and 10% of cases, respectively, and the lesions are multiple in most cases.<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a> The mean survival after the onset of metastasis is only three months.<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">51</span></a></p><p id="par0185" class="elsevierStylePara elsevierViewall">Another frequent malignant tumor of the neck is thyroid carcinoma, the most common endocrinological malignancy.<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> The two main histopathological types (papillary and follicular) most frequently affect the skin secondarily, with an estimated incidence of less than one in 1,000 cases.<a class="elsevierStyleCrossRefs" href="#bib0270"><span class="elsevierStyleSup">54,55</span></a> There are very rare cases of cutaneous metastasis from anaplastic or medullary carcinomas.<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">56</span></a> It occurs in men and women in equal proportions, with a mean age of 50 years.<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">54</span></a> The scalp is involved in most cases, although the involvement of other areas such as the trunk (anterior and posterior), face, and neck have also been reported (<a class="elsevierStyleCrossRef" href="#fig0020">Fig. 4</a>).<a class="elsevierStyleCrossRefs" href="#bib0270"><span class="elsevierStyleSup">54,57</span></a> There is a characteristic clinical presentation since most reports in the literature describe erythematous, pruritic, or ulcerated nodules located on the scalp.<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53,57</span></a> The mean survival after the diagnosis of cutaneous metastasis is 19 months.<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">54</span></a></p><elsevierMultimedia ident="fig0020"></elsevierMultimedia></span></span><span id="sec0085" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Diagnosis</span><p id="par0190" class="elsevierStylePara elsevierViewall">Definitive diagnosis depends on a thorough clinical examination, imaging tests, and histopathological analysis. <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a> summarizes histopathological evidence for suspected skin metastases.</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><p id="par0195" class="elsevierStylePara elsevierViewall">Histopathological and immunohistochemical characteristics of cutaneous metastases tend to be similar to that of the primary tumor; however, metastatic cells tend to be more anaplastic, that is less differentiated.<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a> Hussein recommends a basic immunohistochemical panel including CD45 (for lymphoid malignancies), AE1/AE3 pankeratins (for most carcinomas), S100 (melanomas), and CD34 (vascular neoplasms and leukemias). Subsequently, a second panel may be performed including lymphoid markers (CD3 and CD20 for T and B lymphocytes, respectively), epithelial markers (EMA and CEA), chromogranin (neuroendocrine tumors), thyroid transcription factor (lung cancer), WT1 (ovarian carcinoma), prostate-specific antigen and acid phosphatase (prostate carcinoma).<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a><a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a> summarizes the immunophenotypes of the main tumors that metastasize to the skin and <a class="elsevierStyleCrossRefs" href="#fig0025">Figs. 5 and 6</a> exemplify them.</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><elsevierMultimedia ident="fig0025"></elsevierMultimedia><elsevierMultimedia ident="fig0030"></elsevierMultimedia><p id="par0200" class="elsevierStylePara elsevierViewall">Even after immunohistochemical evaluation, sometimes the pathologist cannot accurately determine the primary tumor and only classifies it into general classes, such as adenocarcinoma, squamous cell carcinoma, or undifferentiated carcinoma.<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> In some cases, after the initial evaluation, the primary origin of the tumor cannot be determined and it is then classified as cancer of an unknown primary site.<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a> In these cases, a more in-depth assessment is required. The first radiological exams to be performed are computed tomography (CT) and/or magnetic resonance imaging (MRI) of different segments of the body, associated with mammography when breast cancer is suspected. If these are inconclusive, the next step is the combined positron emission tomography (PET) and CT (PET-CT) imaging test.<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a></p></span><span id="sec0090" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Treatment</span><p id="par0205" class="elsevierStylePara elsevierViewall">Overall, treatment should be directed at the primary tumor. As in most cases, the presence of cutaneous metastasis indicates advanced disease, systemic antineoplastic therapy is usually the chosen therapeutic option. However, systemic therapy may have reduced efficacy in cutaneous lesions, and skin-directed therapies have an adjuvant function.</p><p id="par0210" class="elsevierStylePara elsevierViewall">A meta-analysis including 47 studies and 4,313 skin metastases evaluated five skin-directed therapies: electrochemotherapy, photodynamic therapy, radiotherapy, intralesional therapy, and topical therapy.<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> The researchers found a complete response rate and an objective response rate of 35.5% and 60.2%, respectively. Electrochemotherapy for cutaneous metastases uses short electrical pulses directed at the tumor to permeabilize cell membranes aiming to increase the absorption of intralesional or intravenous chemotherapy.</p><p id="par0215" class="elsevierStylePara elsevierViewall">As for intralesional therapies, there have been studies with injections of recombinant antibodies directed at ErbB2/HER2 in cases of uterine cervix and breast cancer and interferon and interleukin-2 in cases of melanoma.<a class="elsevierStyleCrossRef" href="#bib0305"><span class="elsevierStyleSup">61</span></a> It is also possible to perform treatment with topical immunotherapy for some tumors. A Brazilian study showed that diphencyprone can lead to up to 37% of complete response in cases of cutaneous melanoma metastases.<a class="elsevierStyleCrossRef" href="#bib0310"><span class="elsevierStyleSup">62</span></a></p></span><span id="sec0095" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Conclusion</span><p id="par0220" class="elsevierStylePara elsevierViewall">Although infrequent, cutaneous metastasis can be the first sign of a malignant neoplasm or indicate its recurrence. The dermatologist must know how to identify suspicious lesions and perform an adequate biopsy. The diagnosis will depend on the clinical, histopathological, and immunohistochemical analysis. Sometimes the identification of the primary site is difficult, but a thorough evaluation using imaging tests and constant surveillance is important.</p></span><span id="sec0100" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Financial support</span><p id="par0225" class="elsevierStylePara elsevierViewall">None declared.</p></span><span id="sec0105" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Authors’ contributions</span><p id="par0230" class="elsevierStylePara elsevierViewall">Bruno de Castro e Souza: Drafting and editing of the manuscript; critical review of the literature.</p><p id="par0235" class="elsevierStylePara elsevierViewall">Denis Miyashiro: Collection, analysis and interpretation of data; drafting and editing of the manuscript; critical review of the literature.</p><p id="par0240" class="elsevierStylePara elsevierViewall">Marcella Soares Pincelli: Design and planning of the study, drafting and editing of the manuscript; critical review of the literature.</p><p id="par0245" class="elsevierStylePara elsevierViewall">José Antonio Sanches: Design and planning of the study, drafting and editing of the manuscript; critical review of the literature.</p></span><span id="sec0110" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Conflicts of interest</span><p id="par0250" class="elsevierStylePara elsevierViewall">None declared.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:13 [ 0 => array:3 [ "identificador" => "xres1940508" "titulo" => "Abstract" "secciones" => array:1 [ 0 => array:1 [ "identificador" => "abst0005" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1672048" "titulo" => "Keywords" ] 2 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 3 => array:3 [ "identificador" => "sec0010" "titulo" => "Etiopathogenesis" "secciones" => array:6 [ 0 => array:2 [ "identificador" => "sec0015" "titulo" => "Local invasion" ] 1 => array:2 [ "identificador" => "sec0020" "titulo" => "Intravasation" ] 2 => array:2 [ "identificador" => "sec0025" "titulo" => "Survival in circulation" ] 3 => array:2 [ "identificador" => "sec0030" "titulo" => "Arrest in a distant organ" ] 4 => array:2 [ "identificador" => "sec0035" "titulo" => "Extravasation" ] 5 => array:2 [ "identificador" => "sec0040" "titulo" => "Micrometastasis formation and metastatic colonization" ] ] ] 4 => array:2 [ "identificador" => "sec0045" "titulo" => "Epidemiology" ] 5 => array:3 [ "identificador" => "sec0050" "titulo" => "Clinical presentation" "secciones" => array:6 [ 0 => array:2 [ "identificador" => "sec0055" "titulo" => "Skin" ] 1 => array:2 [ "identificador" => "sec0060" "titulo" => "Breast" ] 2 => array:2 [ "identificador" => "sec0065" "titulo" => "Lung" ] 3 => array:2 [ "identificador" => "sec0070" "titulo" => "Gastrointestinal tract" ] 4 => array:2 [ "identificador" => "sec0075" "titulo" => "Genitourinary system" ] 5 => array:2 [ "identificador" => "sec0080" "titulo" => "Head and neck" ] ] ] 6 => array:2 [ "identificador" => "sec0085" "titulo" => "Diagnosis" ] 7 => array:2 [ "identificador" => "sec0090" "titulo" => "Treatment" ] 8 => array:2 [ "identificador" => "sec0095" "titulo" => "Conclusion" ] 9 => array:2 [ "identificador" => "sec0100" "titulo" => "Financial support" ] 10 => array:2 [ "identificador" => "sec0105" "titulo" => "Authors’ contributions" ] 11 => array:2 [ "identificador" => "sec0110" "titulo" => "Conflicts of interest" ] 12 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2022-08-29" "fechaAceptado" => "2022-10-25" "PalabrasClave" => array:1 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1672048" "palabras" => array:3 [ 0 => "Immunohistochemistry" 1 => "Medical oncology" 2 => "Neoplastic metastasis" ] ] ] ] "tieneResumen" => true "resumen" => array:1 [ "en" => array:2 [ "titulo" => "Abstract" "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Cutaneous metastases from solid tumors are uncommon events in clinical practice. Most of the time, the patient already has the diagnosis of a malignant neoplasm when the cutaneous metastasis is detected. However, in up to one-third of cases, cutaneous metastasis is identified before the primary tumor. Therefore, its identification may be essential for starting treatment, although it is usually indicative of poor prognosis. The diagnosis will depend on clinical, histopathological, and immunohistochemical analysis. Sometimes the identification of the primary site is difficult; however, a thorough analysis using imaging tests and constant surveillance is important.</p></span>" ] ] "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Study conducted at the Hospital das Clínicas, Universidade de São Paulo, São Paulo, SP, Brazil.</p>" ] ] "multimedia" => array:9 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1605 "Ancho" => 1508 "Tamanyo" => 275462 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Patient with cutaneous metastases of melanoma with an ulcerated tumor lesion and several papules and satellite nodules on the foot</p>" ] ] 1 => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 1383 "Ancho" => 1675 "Tamanyo" => 170567 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Erythematous infiltrated plaque on the chest of a patient with cutaneous metastasis of breast cancer</p>" ] ] 2 => array:8 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 2007 "Ancho" => 1508 "Tamanyo" => 251215 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Metastasis of lung adenocarcinoma presenting as an erythematous-violaceous plaque located in the right axilla</p>" ] ] 3 => array:8 [ "identificador" => "fig0020" "etiqueta" => "Figure 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr4.jpeg" "Alto" => 1179 "Ancho" => 1675 "Tamanyo" => 207264 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0020" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Tumor lesion with papules and satellite erythema on the anterior thorax in a patient with cutaneous metastasis of thyroid cancer. Note the previous thyroidectomy scar</p>" ] ] 4 => array:8 [ "identificador" => "fig0025" "etiqueta" => "Figure 5" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr5.jpeg" "Alto" => 1882 "Ancho" => 3341 "Tamanyo" => 1179063 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0025" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">(A) Atypical cell nodules inside dermal capillaries in a case of breast adenocarcinoma metastasis (Hematoxylin & eosin, ×100). (B) Positive GATA3, (C) CK7 and (D) mammaglobin corroborate the diagnosis</p>" ] ] 5 => array:8 [ "identificador" => "fig0030" "etiqueta" => "Figure 6" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr6.jpeg" "Alto" => 1882 "Ancho" => 3341 "Tamanyo" => 1312034 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0030" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">(A) Atypical nodular proliferation in the deep dermis in a patient with cutaneous metastasis of colon adenocarcinoma (Hematoxylin & eosin, ×100). (B) Positive CK7, (C) CDX2 and (D) EMA corroborate the diagnosis</p>" ] ] 6 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0035" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Cutaneous site \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Primary tumor \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Scalp \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Breast, lung, kidney \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Face and neck \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Squamous cell carcinoma of the head and neck, kidney, lung \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Anterior thorax \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Breast, lung, melanoma \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Abdomen \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Colon, stomach, lung, ovary \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Umbilical region \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Stomach, pancreas, colon, ovaries, kidney, breast \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Pelvis \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Colon, bladder \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab3232789.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Main locations of cutaneous metastases according to the primary tumor<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a></p>" ] ] 7 => array:8 [ "identificador" => "tbl0010" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0040" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Presence of neoplastic cells within lymphatic or blood vessels. \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Nodules located in the reticular dermis and/or hypodermis without contact with the epidermis (grenz zone). \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Presence of neoplastic cells lined up between collagen fibers (“single filing”) \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab3232788.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Histopathological clues for suspected cutaneous metastases<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a></p>" ] ] 8 => array:8 [ "identificador" => "tbl0015" "etiqueta" => "Table 3" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0045" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Primary tumor \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Positive immunohistochemical markers \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Negative immunohistochemical markers \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Breast adenocarcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK7, Estrogen and Progesterone Receptor, Ber-EP4, GATA3, Mammaglobin \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK20, CK5/6 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Colon adenocarcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK20, CDX2, CEA. \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK7 (some cases may be positive) \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Stomach adenocarcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK20, CK7, CEA, CDX2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK7 (some cases may be positive) \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Lung adenocarcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">FTT-1, CK7, CEA, EMA \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK5/6, CK20 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Small-cell lung cancer \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">FTT-1, neuron-specific enolase (NSE), chromogranin, synaptophysin \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK7, CK20, CD99 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Clear cell renal carcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CAM5.2, EMA, CD10, RCC-Ma, vimentin, S100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Melan-A, TTF-1, CK7, CK20 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Melanoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Vimentin, S100, tyrosinase, Melan-A, HMB45, MITF \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">– \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Bladder/urothelial \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">P63, CK5/6, CK7, CK20, uroplakin III \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">– \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Prostate \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">PSA, prostatic acid phosphatase, \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK7, CK20, thrombomodulin \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Ovary \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CA.125, CK7, PAX8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK20 (except some mucinous variants) \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Head and neck squamous cell carcinoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CK5/6, p63, CK903 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">– \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Thyroid \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">FTT-1, thyroglobulin, PAX8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">– \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab3232787.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Summary of immunophenotypes of the main tumors that metastasize to the skin.<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a></p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:62 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Cutaneous metastases. 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Ano/Mês | Html | Total | |
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