PEComa ( Pure Epithelioid Angiomyolipoma ) of kidney
نویسندگان
چکیده
A 60-year-old male patient presented with complaints of loss of appetite and bloated abdomen of two weeks duration. The radiological examination revealed large mass involving left kidney. With a clinical and radiological diagnosis of renal cell carcinoma, radical nephrectomy was done. Histopathological examination revealed a neoplasm composed purely of epithelioid cells. Based on histopathological and immunohistochemical findings a diagnosis of Epithelioid Angiomyolipoma of kidney was made. We are reporting this case because of the rarity of this variant of angiomyolipoma and to highlight the diagnostic difficulties of this entity when compared to the more common classic angiomyolipoma.
منابع مشابه
Primary 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...
متن کاملPerivascular Epithelioid Cell Tumor: A Rare Liver Primary of Mesenchymal Origin
Perivascular Epithelioid Cell Tumors (PEComas) are a family of rare neoplasms defined as mesenchymal tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells [1]. Pea et al. first noted this unusual cell type in both renal angiomyolipoma (AML) and clear-cell “sugar” tumor (CCST) of the lung [2]. This generated the concept of a family of neoplasms co...
متن کاملHuge retroperitoneal epithelioid angiomyolipoma: A case report
Angiomyolipoma (AML) is a type of tumor in the perivascular epithelioid cell neoplasm (PEComa) family. Epithelioid angiomyolipoma (EAML), having malignant potential, is considered a rare variant of angiomyolipoma. The most common site of EAMLs is kidney, and extra-renal EAMLs are very uncommon, with liver being the most common site.1 Other locations including retroperitoneum, uterus, liver, lun...
متن کاملNasal Angiomyolipoma (AML) Mimicking Juvenile Nasopharyngeal Angiofibroma
Introduction: Angiomyolipoma (AML), a benign mesenchymal tumor that commonly arises from the kidney, may be associated with tuberous sclerosis complex and perivascular epithelioid cell tumors (PEComas). Nasal angiomyolipoma is very rare and usually occurs in elderly individuals with epistaxis and nasal obstruction. Case Report: We report a rare case of nasal angiomyoli...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013