Symptomatic hibernoma: a rare soft tissue tumor.

ABSTRACT

Hibernomas are benign soft tissue tumors containing prominent brown adipocytes that resemble normal brown fat. Hibernomas have not been associated with malignant potential; however, they are similar in clinical presentation to malignant tumors like liposarcomas. This article describes the clinical, radiographic, and histologic features of a patient with a hibernoma arising from the left superior flank.