Hepatic perivascular epithelioid cell tumor (PEComa): a case report with a review of literatures
Clinical and Molecular Hepatology
;
: 80-86, 2017.
Artigo
em Inglês
| WPRIM
| ID: wpr-165805
ABSTRACT
Hepatic perivascular epithelioid cell tumors (PEComas) are very rare. We report a primary hepatic PEComa with a review of the literature. A 56-year-old women presented with a nodular mass detected during the management of chronic renal failure and chronic hepatitis C. Diagnostic imaging studies suggested a nodular hepatocellular carcinoma in segment 5 of the liver. The patient underwent partial hepatectomy. A brown-colored expansile mass measuring 3.2×3.0 cm was relatively demarcated from the surrounding liver parenchyma. The tumor was mainly composed of epithelioid cells that were arranged in a trabecular growth pattern. Adipose tissue and thick-walled blood vessels were minimally identified. A small amount of extramedullary hematopoiesis was observed in the sinusoidal spaces between tumor cells. Tumor cells were diffusely immunoreactive for human melanoma black 45 (HMB45) and Melan A, focally immunoreactive for smooth muscle actin, but not for hepatocyte specific antigen (HSA).
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Vasos Sanguíneos
/
Hematopoese Extramedular
/
Diagnóstico por Imagem
/
Células Epitelioides
/
Tecido Adiposo
/
Actinas
/
Carcinoma Hepatocelular
/
Hepatite C Crônica
/
Hepatócitos
/
Neoplasias de Células Epitelioides Perivasculares
Tipo de estudo:
Estudo diagnóstico
Limite:
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Clinical and Molecular Hepatology
Ano de publicação:
2017
Tipo de documento:
Artigo
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