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Case Reports in Urology
Volume 2013, Article ID 893242, 2 pages
Case Report

Retroperitoneal Lipoma Presenting with Nutcracker-Like Phenomenon

Art Park Urology Hospital & Clinic, Ishiyama-Higashi 3-1-31, Sapporo 005-0850, Japan

Received 15 July 2013; Accepted 2 October 2013

Academic Editors: A. Greenstein, C. Magno, and I. Pearce

Copyright © 2013 Seiichi Saito. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Retroperitoneal lipoma presenting with a nutcracker-like phenomenon is extremely rare. I experienced a case of a 65-year-old man presenting with left flank pain and macrohematuria intermittently for 3 years. Computed tomography revealed a lipoma at the left pedicle of the kidney, 30 mm in diameter, causing a curving of the left renal artery and dilatation of the left renal vein. This patient was treated successfully by retroperitoneoscopic resection of the lipoma. There have been no symptoms for 10 years after the operation.