title: Colonic angiomyolipoma with a monotypic expression and a predominant epithelioid component.
abstract: 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/PEComas reported in the literature, this case formed a large, mainly extrinsic mass and was monotypic, and composed entirely of the myomatous component with no adipose tissue or typical vasculature.
authors.affiliation: Queens Medical Centre University Hospital, Nottingham NG7 2UH, UK.
authors.forename: M
authors.initials: M
authors.lastname: Abdulkader
authors.forename: J
authors.initials: J
authors.lastname: Abercrombie
authors.forename: T A
authors.initials: TA
authors.lastname: McCulloch
authors.forename: P V
authors.initials: PV
authors.lastname: Kaye
mesh_terms: D000328:Adult; D018207:Angiomyolipoma / Q000473:pathology / Q000648:ultrastructure*; D002430:Cecal Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D009361:Neoplasm Invasiveness