نتایج جستجو برای: pecoma
تعداد نتایج: 273 فیلتر نتایج به سال:
Perivascular epithelioid cell tumors (PEComas) are mesenchymal neoplasms with immunoreactivity for both melanocytic and smooth muscle markers. PEComas occur at multiple sites, and malignant PEComas can undergo metastasis, recurrence and aggressive clinical courses. Although the lung is a common metastatic site of PEComas, they usually appear as multiple nodules but rarely become cystic or cavit...
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...
Angiomyolipomas are rare lesions, often arising in the kidney, and are part of a group of tumours with a diverse appearance and evidence of dual melanocytic and smooth muscle differentiation known as PEComas (tumours of perivascular epithelioid cell origin). This report describes an unusual case of a colonic PEComa in a 40 year old woman. Unlike most of the previous colonic angiomyolipomas/ PEC...
CONTEXT PEComas (tumors showing perivascular epithelioid cell differentiation) of the pancreas are exceedingly rare. CASE REPORT We herein report on a 60-year-old female who noticed a bulge in her right upper quadrant while exercising. Subsequent multidetector-row CT scan showed a 3.5 cm well-defined, encapsulated, hypovascular, solid tumor in the body of the pancreas. Endoscopic ultrasound d...
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...
Lymphangioleiomyomatosis (LAM) is a rare, proliferative lung disease, leading to progressive damage of their structure and member the PEComa neoplasm family (perivascular epithelioid cell tumors). In patients, solid-cystic masses described as lymphangioleiomyoma or extrapulmonary LAM (E-LAM) can occur. E-LAM foci have been in mediastinum, supraclavicular lymph nodes, liver, walls small large in...
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