Renal cell carcinoma containing macroscopic fat on CT mimics an angiomyolipoma due to bone metaplasia without macroscopic calcification.

The British Journal of Radiology
L RichmondS Sharir

Abstract

We report a case of renal cell carcinoma (RCC) containing foci of macroscopic fat, which were pathologically proven to be areas of osseous metaplasia. The macroscopic fat was not associated with calcification on the pre-operative CT scan. To our knowledge, there are no reported cases of RCC that contain osseous metaplasia without evidence of macroscopic calcification on CT. The finding is significant because standard imaging practice is to classify a renal mass containing intratumoral macroscopic fat that is not associated with calcification, ossification or invasion of perirenal or hilar fat as an angiomyolipoma.

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Citations

May 23, 2014·AJR. American Journal of Roentgenology·Stella K KangHersh Chandarana
Nov 22, 2014·AJR. American Journal of Roentgenology·Nicola SchiedaMatthew D F McInnes
May 16, 2013·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Sajal S PokharelAtif Zaheer
Jun 16, 2012·Abdominal Imaging·Elliot J WasserStuart G Silverman
Apr 5, 2016·AJR. American Journal of Roentgenology·Nicola Schieda
Dec 5, 2014·Clinical Radiology·N K RamamurthyN Schieda
May 11, 2016·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Akram M ShaabanChristine O Menias
Jun 21, 2016·International Journal of Surgery·Alison ElstobUday Patel
Dec 23, 2016·Radiology·Billy Ming Hei LaiJennifer Lai San Khoo
Aug 6, 2017·European Radiology·Robert S LimNicola Schieda
Jan 9, 2019·AJR. American Journal of Roentgenology·Byung Kwan Park
Jun 10, 2015·BJR Case Reports·Z DoyleC S Santillan
Apr 19, 2018·The British Journal of Radiology·Zhen J WangRonald J Zagoria
Feb 18, 2020·Canadian Association of Radiologists Journal = Journal L'Association Canadienne Des Radiologistes·Andrew D Chung
Nov 17, 2016·Abdominal Radiology·Matthew Bennett, Raymond B Dyer
Feb 15, 2021·Pediatric Nephrology : Journal of the International Pediatric Nephrology Association·Joyce Pk ChanSavvas Andronikou
Mar 6, 2021·Journal of Medical Imaging and Radiation Oncology·Maria Kirkinis, Tom Sutherland

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