The different faces of renal angiomyolipomas on radiologic imaging: a pictorial review.

The different faces of renal angiomyolipomas on radiologic imaging: a pictorial review.
Br J Radiol. 2018 Jan 12;:20170533
Authors: Thiravit S, Teerasamit W, Thiravit P
Abstract
Renal angiomyolipoma (AML) is an uncommon renal tumour, generally composed of mature adipose tissue, dysmorphic blood vessels, and smooth muscle. Identification of intratumoural fat on unenhanced CT images (UECT) is the most reliable finding for establishing the diagnosis of renal AML. However, AMLs sometimes exhibit atypical findings, including cystic as well as solid forms; some of these variants overlap with the appearance of other renal tumours. A rare type of AML, the epithelioid type, possesses malignant potential. The aim of this pictorial review is to gather the different imaging features of AMLs including the classic and fat-poor types, AMLs with epithelial cysts, epithelioid AML, AML associated with tuberous sclerosis, haemorrhagic AML, and large AMLs mimicking retroperitoneal liposarcomas. The diagnostic clues that help to distinguish AMLs from other renal tumours are also described in the review.
PMID: 29327940 [PubMed - as supplied by publisher]

Source: The British Journal of Radiology - January 12, 2018 Category: Radiology Authors: Thiravit S, Teerasamit W, Thiravit P Tags: Br J Radiol Source Type: research