Subcutaneous porocarcinoma clinically presenting as a soft tissue tumor.
J Cutan Pathol
; 42(11): 897-902, 2015 Nov.
Article
en En
| MEDLINE
| ID: mdl-26268396
ABSTRACT
Porocarcinoma is a rare malignancy with glandular adnexal differentiation. A 38-year-old Japanese man noticed a subcutaneous mass in right inguinal region about 20 years prior to being examined. Radiological examinations demonstrated the mass, 11 × 10 cm in size, was in the subcutaneous fat tissue. Recently, the mass grew rapidly, and it was biopsied by an orthopedist based on clinical diagnosis of primary soft tissue tumor. Histopathological examination of the resected specimens also revealed that the tumor lacked involvement to the skin. Microscopically, the tumor was mainly composed of poroid cells with partially obvious squamous differentiation, accompanied by focal ductal structures immunoreactive for CEA and EMA. The tumor contained a low-grade area consisting of poroid cells and high-grade area with squamous differentiation. This histopathological heterogeneity suggested malignant transformation from poroma. The patient had the tumor in almost same size over the period of 20 years, which is the longest in the previous reports. This unique case of subcutaneous porocarcinoma is reported.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de los Tejidos Blandos
/
Tejido Subcutáneo
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Porocarcinoma Ecrino
Tipo de estudio:
Diagnostic_studies
Límite:
Adult
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Humans
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Male
Idioma:
En
Año:
2015
Tipo del documento:
Article