Perivascular epithelioid cell tumor (PEComa) presents an endometrial polyp pattern: Case report and literature review
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Malignant perivascular epithelioid cell tumor (PEComa) of the femur: a case report and literature review
BACKGROUND We describe a case of malignant perivascular epithelial cell tumor (PEComa) arising primarily in the distal left femur of a 47-year-old male. CASE PRESENTATION The patient presented with pain accompanied by progressive swelling of his left thigh. Computed tomography (CT) scan and magnetic resonance imaging (MRI) revealed an osteolytic lesion. Curettage of the lesion was reported as...
متن کاملHepatic perivascular epithelioid cell tumor (PEComa): a case report with a review of literatures
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...
متن کاملPEComa: A Perivascular Epithelioid Cell Tumor in the Liver—A Case Report and Review of the Literature
Perivascular epithelioid cell tumors are soft tissue tumors that can occur in various locations in the body whose incidence is rising. Hepatic PEComas are quite rare and diagnosis involves positivity of Melan-A and HMB45 on immunohistochemistry. Usual treatment is surgery for benign tumors and chemotherapy including mTOR inhibitors for malignant tumors. Here we discuss the radiological and path...
متن کاملPrimary Perivascular Epithelioid Cell Tumor (PEComa) of the Liver - A Case Report and Review of the Literature -
Perivascular epithelioid cells (PECs) were initially proposed, by Bonetti et al. in 1992, to describe an “unusual atypical cell type” of epithelioid shape and harboring a clear to eosinophilic cytoplasm with perivascular distribution in both renal angiomyolipoma (AML) and clear cell sugar tumor (CCST) of the lung. This perception gradually became accepted and led to the concept of perivascular ...
متن کاملPigmented Perivascular Epithelioid Cell Tumor (PEComa) of the Kidney: A Case Report and Review of the Literature
Heavily pigmented perivascular epithelioid cell tumors (PEComa) are rare, only eight cases of which have been reported. Unlike typical epithelioid angiomyolipoma, most of these tumors have been encountered in female patients without tuberous sclerosis. The long-term prognosis thereof is undetermined. Cytological similarity and heavy melanin pigment make it difficult for pigmented PEComa to be d...
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ژورنال
عنوان ژورنال: Human Pathology: Case Reports
سال: 2018
ISSN: 2214-3300
DOI: 10.1016/j.ehpc.2018.04.006