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Publication Name
World Journal of Clinical Cases
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2307-8960
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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Case Report
©2014 Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 16, 2014; 2(7): 279-283
Published online Jul 16, 2014. doi: 10.12998/wjcc.v2.i7.279
Perirenal extra-adrenal myelolipoma
Ali Hajiran, Chad Morley, Robert Jansen, Stanley Kandzari, Patrick Bacaj, Stanley Zaslau, Jon Cardinal
Ali Hajiran, Chad Morley, Robert Jansen, Stanley Kandzari, Patrick Bacaj, Stanley Zaslau, Jon Cardinal, Division of Urology, West Virginia University, Morgantown, WV 26505, United States
Patrick Bacaj, Department of Pathology, West Virginia University, Morgantown, WV 26505, United States
Jon Cardinal, Division of Surgical Oncology, West Virginia University, Morgantown, WV 26505, United States
Author contributions: Hajiran A, Morley C, Jansen R and Kandzari S wrote the paper; Cardinal J participated in the presented surgical case; Bacaj P provided the histological diagnosis and commentary; Jansen R, Kandzari S, Zaslau S and Cardinal J edited the final paper and provided additional commentary.
Correspondence to: Stanley Zaslau, MD, MBA, FACS, Professor and Chief, Division of Urology, West Virginia University, PO Box 9238, Morgantown, WV 26506. United States. szaslau@hsc.wvu.edu
Telephone: +1-304-2932706 Fax: +1-304-2932807
Received: December 11, 2013
Revised: April 22, 2014
Accepted: May 28, 2014
Published online: July 16, 2014
Processing time: 220 Days and 21.7 Hours
Abstract

Myelolipomas are rare tumors consisting of both adipose and hematopoietic tissue and are typically found within the adrenal gland. Extra-adrenal involvement is rare, especially those tumors involving the perirenal space and collecting system. We report a case of a patient with an incidentally discovered perirenal mass that was initially concerning for a retroperitoneal liposarcoma. Following surgical resection and pathological analysis, the lesion was found to be an extra-adrenal myelolipoma. This case report and review of the literature demonstrates the importance of the proper work-up and management of perirenal lipoma variants while addressing the issues of tissue biopsy, surgical intervention, and pre- and post-operative surveillance.

Keywords: Myelolipoma; Lipoma; Perirenal mass; Nephrectomy; Oncology

Core tip: We report a case of a patient with an incidentally discovered perirenal mass that was initially concerning for a retroperitoneal liposarcoma. Following surgical resection and pathological analysis, the lesion was found to be an extra-adrenal myelolipoma. This case report and review of the literature demonstrates the importance of the proper work-up and management of perirenal lipoma variants while addressing the issues of tissue biopsy, surgical intervention, and pre- and post-operative surveillance.
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