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ABSTRACT: We present the sonographic characteristics of a rare case of cholesterol granuloma within a renal epithelioid angiomyolipoma (AML) in a 57-year-old woman. Sonography showed acoustic shadowing distal to the central region of the AML behind a hyperechoic cholesterol, which was hypoattenuating on CT with no contrast enhancement. Microscopic examination confirmed that this central area was a cholesterol granuloma. The patient was treated successfully with radical nephrectomy. © 2010 Wiley Periodicals, Inc. J Clin Ultrasound, 2010
Journal of Clinical Ultrasound 01/2011; 39(2):95 - 98. · 0.81 Impact Factor