Letter - Tropical/Infectious and Parasitic Dermatology
Cutaneous protothecosis in a solid organ transplanted patient
Anama Di Prinzio
, Marina Ruf, Ana C. Torre, Sofía V. Duran Daza, Victoria I. Volonteri, Viviana Flores, Luis D. Mazzuoccuolo
Corresponding author
Italian Hospital of Buenos Aires, CABA, Argentina
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Torre, Sofía V. Duran Daza, Victoria I. Volonteri, Viviana Flores, Luis D. Mazzuoccuolo" "autores" => array:7 [ 0 => array:4 [ "nombre" => "Anama" "apellidos" => "Di Prinzio" "email" => array:1 [ 0 => "anama.diprinzio@hospitalitaliano.org.ar" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:2 [ "nombre" => "Marina" "apellidos" => "Ruf" ] 2 => array:2 [ "nombre" => "Ana C." "apellidos" => "Torre" ] 3 => array:2 [ "nombre" => "Sofía V." "apellidos" => "Duran Daza" ] 4 => array:2 [ "nombre" => "Victoria I." "apellidos" => "Volonteri" ] 5 => array:2 [ "nombre" => "Viviana" "apellidos" => "Flores" ] 6 => array:2 [ "nombre" => "Luis D." "apellidos" => "Mazzuoccuolo" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Italian Hospital of Buenos Aires, CABA, Argentina" "identificador" => "aff0005" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0020" "etiqueta" => "Figure 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr4.jpeg" "Alto" => 1259 "Ancho" => 1675 "Tamanyo" => 343569 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Histopathological characteristics (Hematoxylin & eosin, ×400): Rounded structures larger than the surrounding cells and multiple cytoplasmic septa, which gives them a morula-like appearance. Sporangia highlighted</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">A 35-year-old woman, with a history of cretinism and chronic kidney disease secondary to congenital urological pathology, received a kidney transplant at the age of 30. At 5 years, due to graft rejection, she required a new transplant and was started on prednisone 20 mg/day, tacrolimus 16 mg/day, and mycophenolate mofetil 250 mg every 8 hours.</p><p id="par0010" class="elsevierStylePara elsevierViewall">During her admission for bacteremia secondary to urinary tract infection, an erythematous plaque with diffuse borders and discrete asymptomatic superficial scaling was observed on the anterior and lateral sides of her left leg (<a class="elsevierStyleCrossRefs" href="#fig0005">Figs. 1 and 2</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">Laboratory investigations showed leukocytes of 4900 mm<span class="elsevierStyleSup">3</span> with a relative neutrophilia of 94%. Arterial and venous Doppler ultrasound of the left lower limb showed lymphedema and increased echogenicity of the subcutaneous tissue. PET-CT revealed an increase in the density of the subcutaneous cellular tissue, accompanied by an inflammatory process. Skin biopsy was performed for histopathology and culture of bacteria, mycobacteria, and fungi. The first presented large, rounded structures, with multiple cytoplasmic septa, some with a morula-like appearance, and numerous sporangia with internal septa forming endospores (<a class="elsevierStyleCrossRefs" href="#fig0015">Fig. 3 and 4</a>). In culture, creamy white colonies were observed, some rough with depressed centers, compatible with <span class="elsevierStyleItalic">Prototheca spp</span>. (<a class="elsevierStyleCrossRef" href="#fig0025">Fig. 5</a>).</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><elsevierMultimedia ident="fig0020"></elsevierMultimedia><elsevierMultimedia ident="fig0025"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">Systemic treatment with liposomal Amphotericin B 200 mg/day was started, with an improvement of the skin lesions. Fourteen days later, he has switched to itraconazole 200 mg every 8 hours for 3 days and then continued at 200 mg every 12 hours. It evolved in a torpid way with partial improvement and intermittent worsening. At 9 months, a new skin culture was performed where the sensitivity of Prototheca was verified, and treatment was changed to fluconazole 200 mg every 12 hours and minocycline 100 mg every 12 hours.</p><p id="par0025" class="elsevierStylePara elsevierViewall">Ultimately, she developed septic shock related to a urinary tract infection caused by carbapenemase-producing Klebsiella pneumonia. Antibiotic treatment was administered, but despite this, the patient developed multi-organ failure and died.</p><p id="par0030" class="elsevierStylePara elsevierViewall">Protothecosis is a rare infection caused by algae of the species <span class="elsevierStyleItalic">Prototheca spp</span>. Within the species of the Prototheca genus, <span class="elsevierStyleItalic">Prototheca wickerhamii</span> and <span class="elsevierStyleItalic">zopfii</span> are the ones that most frequently affect immunocompromised hosts.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,2</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">Prototheca infection ranges from indolent and localized skin involvement, soft tissue infection, olecranon bursitis in immunocompetent patients, to devastating disseminated infection with algemia and visceral infiltration with high mortality in immunocompromised hosts due to transplant, diabetes, HIV, and hematologic diseases.<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,3</span></a> The cutaneous form represents the most frequent manifestation (3 out of 4 patients). The lesions usually appear in areas exposed to traumatic implantation. It usually presents with poorly defined erythematous plaques, although less frequently it can manifest with nodular, pustular, warty, and ulcerated lesions.</p><p id="par0040" class="elsevierStylePara elsevierViewall">Diagnosis is made by clinical suspicion, detection of characteristic structures in skin cultures, and microscopic examination. The definitive diagnosis of infection is usually based on the morphological identification of the organisms in culture preparations in wet slides and/or direct identification in tissue samples as in the reported case.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1–4</span></a></p><p id="par0045" class="elsevierStylePara elsevierViewall">Its prognosis is good in almost 70% of cases. On the other hand, when it presents in a disseminated form, it has a worse prognosis, with high mortality.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,5</span></a> The most commonly used medications are antifungals, including amphotericin B and systemic azoles. Amphotericin B is currently the first-line treatment in disseminated cases and in patients with severe underlying diseases or immunosuppression.<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6–9</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">In conclusion, protothecosis is an infrequent infection with nonspecific skin manifestations, so in the presence of plaques, nodules, ulcerated or warty lesions in immunosuppressed patients, a skin biopsy should be performed for culture and histopathology to detect infectious agents. The initiation of adequate treatment prevents the progression of the disease.<a class="elsevierStyleCrossRefs" href="#bib0025"><span class="elsevierStyleSup">5–10</span></a></p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Financial support</span><p id="par0055" class="elsevierStylePara elsevierViewall">None declared.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Authors' contributions</span><p id="par0060" class="elsevierStylePara elsevierViewall">Anama Di Prinzio: The study concept and design; writing of the manuscript.</p><p id="par0065" class="elsevierStylePara elsevierViewall">Marina Ruf: The study concept and design; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases.</p><p id="par0070" class="elsevierStylePara elsevierViewall">Ana C. Torre: Data collection, or analysis and interpretation of data.</p><p id="par0075" class="elsevierStylePara elsevierViewall">Sofía V. Duran Daza: Writing of the manuscript or critical review of important intellectual content.</p><p id="par0080" class="elsevierStylePara elsevierViewall">Victoria I. Volonteri: Data collection.</p><p id="par0085" class="elsevierStylePara elsevierViewall">Viviana Flores: Data collection.</p><p id="par0090" class="elsevierStylePara elsevierViewall">Luis D. Mazzuoccuolo: Final approval of the final version of the manuscript.</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Conflicts of interest</span><p id="par0095" class="elsevierStylePara elsevierViewall">None declared.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:5 [ 0 => array:2 [ "identificador" => "sec0005" "titulo" => "Financial support" ] 1 => array:2 [ "identificador" => "sec0010" "titulo" => "Authors' contributions" ] 2 => array:2 [ "identificador" => "sec0015" "titulo" => "Conflicts of interest" ] 3 => array:2 [ "identificador" => "xack679991" "titulo" => "Acknowledgement" ] 4 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2022-09-08" "fechaAceptado" => "2022-10-07" "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Study conducted at the Italian Hospital of Buenos Aires, CABA, Argentina.</p>" ] ] "multimedia" => array:5 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 2226 "Ancho" => 1675 "Tamanyo" => 197969 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Asymmetry of the lower limbs due to an increase in the circumference of the left leg associated with erythema on its anterior region</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" => 2764 "Ancho" => 1675 "Tamanyo" => 341350 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Erythematous and edematous plaque with diffuse borders on left leg. Edema with positive Godet's sign</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" => 1259 "Ancho" => 1675 "Tamanyo" => 454728 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0020" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Granulomatous dermal infiltrate consisting of lymphocytes, histiocytes, multinucleated giant cells, and rounded structures, isolated or grouped, of different sizes, inside histiocytes and giant cells (Hematoxylin & eosin, ×100)</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" => 1259 "Ancho" => 1675 "Tamanyo" => 343569 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Histopathological characteristics (Hematoxylin & eosin, ×400): Rounded structures larger than the surrounding cells and multiple cytoplasmic septa, which gives them a morula-like appearance. Sporangia highlighted</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" => 673 "Ancho" => 1675 "Tamanyo" => 68842 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0025" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">In culture, creamy white colonies were observed, some rough with depressed centers, compatible with <span class="elsevierStyleItalic">Prototheca</span> spp</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:10 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Case for diagnosis. 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Martins" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1590/abd1806-4841.20132232" "Revista" => array:6 [ "tituloSerie" => "An Bras Dermatol" "fecha" => "2013" "volumen" => "88" "paginaInicial" => "183" "paginaFinal" => "185" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/24346914" "web" => "Medline" ] ] ] ] ] ] ] ] 7 => array:3 [ "identificador" => "bib0040" "etiqueta" => "8" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Emergence of fungal-like organisms: prototheca" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => "K. Rui" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1007/s11046-019-00365-4" "Revista" => array:6 [ "tituloSerie" => "Mycopathologia" "fecha" => "2020" "volumen" => "185" "paginaInicial" => "747" "paginaFinal" => "754" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/31401758" "web" => "Medline" ] ] ] ] ] ] ] ] 8 => array:3 [ "identificador" => "bib0045" "etiqueta" => "9" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Medical phycology 2017" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "J.R. Todd" 1 => "T. Matsumoto" 2 => "R. Ueno" 3 => "J. Murugaiyan" 4 => "A. Britten" 5 => "J.W. King" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1093/mmy/myx162" "Revista" => array:6 [ "tituloSerie" => "Med Mycol" "fecha" => "2018" "volumen" => "56" "paginaInicial" => "S188" "paginaFinal" => "S204" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/29767780" "web" => "Medline" ] ] ] ] ] ] ] ] 9 => array:3 [ "identificador" => "bib0050" "etiqueta" => "10" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Emergence of fungal-like organisms: Prototheca" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => "R. Kano" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1007/s11046-019-00365-4" "Revista" => array:6 [ "tituloSerie" => "Mycopathologia" "fecha" => "2020" "volumen" => "185" "paginaInicial" => "747" "paginaFinal" => "754" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/31401758" "web" => "Medline" ] ] ] ] ] ] ] ] ] ] ] ] "agradecimientos" => array:1 [ 0 => array:4 [ "identificador" => "xack679991" "titulo" => "Acknowledgement" "texto" => "<p id="par0100" class="elsevierStylePara elsevierViewall">We thank Dr. Victoria Volonteri for her collaboration with the histological images of the patient.</p>" "vista" => "all" ] ] ] "idiomaDefecto" => "en" "url" => "/03650596/0000009800000005/v1_202307281023/S0365059623000879/v1_202307281023/en/main.assets" "Apartado" => array:4 [ "identificador" => "95150" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Letter - Tropical/Infectious and parasitic dermatology" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/03650596/0000009800000005/v1_202307281023/S0365059623000879/v1_202307281023/en/main.pdf?idApp=UINPBA00008Z&text.app=https://clinics.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0365059623000879?idApp=UINPBA00008Z" ]
| Year/Month | Html | Total | |
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| 2024 November | 22 | 3 | 25 |
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