Perivascular Epithelioid Cell Tumor (PEComa) of the Liver Diagnosed by Contrast-enhanced Ultrasonography
نویسندگان
چکیده
منابع مشابه
Perivascular epithelioid cell tumor (PEComa) of the liver diagnosed by contrast-enhanced ultrasonography.
Perivascular epithelioid cell (PEC) is a unique cell which expresses both myogenic and melanocytic markers, and forms PEComa. A 36-year-old woman presented with a 35 mm-diameter liver tumor. MRI showed poor fat component in the tumor. Contrast-enhanced ultrasonography using the newly developed enhancing reagent, Sonazoid, clearly demonstrated early-phase enhancement of the tumor and rapid drain...
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Perivascular epithelioid cell tumors (PEComas) are mesenchymal tumors composed of histologically, immunohistochemically, ultrastructurally, and genetically distinctive cells. PEComas have been described in different organs and are considered ubiquitous tumors. In this review we discuss recent informations related to PEComas in the genitourinary tract.
متن کاملPigmented perivascular epithelioid cell tumor (PEComa) arising from kidney
INTRODUCTION Perivascular epithelioid cell tumor (PEComa) is a mesenchymal neoplasm composed of perivascular epithelioid cells with clear to eosinophilic cytoplasm. Pigmented PEComa arising from kidney is extraordinarily rare and sometimes can exhibit aggressive biological behavior. CASE REPORT We present here a rare case of pigmented renal PEComa in a 46-year-old female. The patient had comp...
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PEComas localized in the region of falciform ligament and broad ligament are exceedingly rare. Most of them are built of spindle neoplastic cells. We report a case of epithelioid PEComa of the falciform ligament and/or broad ligament. There is only one report of such neoplasm in English-language literature. Histologically, the tumor was composed of nests of epithelioid clear cells stained posit...
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A 7-year-old boy presented with hematochezia and abdominal pain. A 3.7-cm-sized mass was identified in the ascending colon by abdominal computed tomography and colonoscopy. The patient underwent surgical resection. Pathological examination revealed a low-grade perivascular epithelioid cell tumor (PEComa). PEComa in the colon is very rare. Only a few cases have been reported so far. An effective...
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ژورنال
عنوان ژورنال: Internal Medicine
سال: 2009
ISSN: 0918-2918,1349-7235
DOI: 10.2169/internalmedicine.48.2133