Giant adrenal myelolipoma: report of a case.

Adrenal myelolipomas are rare benign tumors composed of mature adipose tissue and hematopoietic elements that resemble bone marrow. They are usually asymptomatic, and most cases are incidentally found at radiological examination or autopsy. Symptoms such as abdominal pain and increasing girth occur only when the tumor grows large. We report the case of a giant adrenal myelolipoma in a 51-year old man who presented with a huge abdominal mass and abdominal pain. The resected tumor weighed 6,000 g and could represent the largest such tumor ever documented in the literature. We discuss the diagnosis and treatment of this unusual tumor.