Presacral hibernoma: Radiologic-pathologic correlation

Hibernoma is a rare benign tumor of brown fat origin. It is found in locations where brown adipose tissue is present in the fetus. These locations include the neck, axilla, thorax, and extremities. Retroperitoneal hibernoma is an extremely rare site of presentation. We present a rare case of presacral hibernoma. Preoperative embolization of this highly vascular tumor was performed. To the best of our knowledge, this is the first reported case of a presacral hibernoma in the English literature.