title: Perirenal extra-adrenal myelolipoma.
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.
authors.affiliation: 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.
authors.forename: Ali
authors.initials: A
authors.lastname: Hajiran
authors.affiliation: 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.
authors.forename: Chad
authors.initials: C
authors.lastname: Morley
authors.affiliation: 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.
authors.forename: Robert
authors.initials: R
authors.lastname: Jansen
authors.affiliation: 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.
authors.forename: Stanley
authors.initials: S
authors.lastname: Kandzari
authors.affiliation: 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.
authors.forename: Patrick
authors.initials: P
authors.lastname: Bacaj
authors.affiliation: 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.
authors.forename: Stanley
authors.initials: S
authors.lastname: Zaslau
authors.affiliation: 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.
authors.forename: Jon
authors.initials: J
authors.lastname: Cardinal
keywords: Lipoma; Myelolipoma; Nephrectomy; Oncology; Perirenal mass