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Case Reports

Primary Myelolipoma of the Chest Wall

Dariusz Sagan, MD, PhD^a,_*, Magorzata Zdunek, MD, PhD^b, Elbieta Korobowicz, MD, PhD^b

^a Department of Thoracic Surgery, Medical University of Lublin, Lublin, Poland
^b Department of Clinical Pathomorphology, Medical University of Lublin, Lublin, Poland

Accepted for publication June 18, 2009.

^_* Address correspondence to Dr Sagan, Department of Thoracic Surgery, Medical University of Lublin, Jaczewskiego 8, Lublin, 20-090, Poland (Email: dariusz.sagan{at}am.lublin.pl).

Myelolipoma is a rare neoplasm composed of an admixture of mature adipose tissue and hematopoietic elements. It typically occurs in adrenal glands as a solitary, well-circumscribed mass, and the thoracic location is extremely unusual. We present a 63-year-old man with an accidentally detected tumor of the chest wall. Thoracoscopic resection and subsequent histopathologic examination of the lesion revealed myelolipoma with bony spicules, which are an unusual component in this neoplasm. We discuss the etiology, histopathology, differential diagnosis, and recommended management of extra-adrenal myelolipoma, and we conclude that it should be considered in the differential diagnosis of subpleural chest wall tumors.