title: Malignant renal epithelioid angiomyolipoma with aggressive behavior and distant metastasis.
abstract: Angiomyolipoma (AML) is a common renal tumor and mostly benign in entity. Malignant AML is extremely rare and most of them are found to be epithelioid AML histopathologically. We report the imaging features of a malignant epithelioid AML in a 58-year-old patient with liver and nodal metastases, and review the literatures. We have observed that AML of epithelioid subtype with tumoral necrosis may suggest the malignant change.
authors.affiliation: Department ofRadiology, Taipei Veterans General Hospital, Taiwan, ROC. wc_lin@vghtpe.gov.tw
authors.forename: Wen-Chiung
authors.initials: WC
authors.lastname: Lin
authors.forename: Jia-Hwia
authors.initials: JH
authors.lastname: Wang
authors.forename: Chao-Jung
authors.initials: CJ
authors.lastname: Wei
authors.forename: Chin-Chen
authors.initials: CC
authors.lastname: Pan
authors.forename: Cheng-Yen
authors.initials: CY
authors.lastname: Chang
mesh_terms: D018207:Angiomyolipoma / Q000473:pathology*; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed