Malignant fibrous histiocytoma of primary omental origin in an infant.

A case of malignant fibrous histiocytoma occurring in an infant is presented. The primary location of the tumor was in the omentum. Sonography showed huge, lobulated echogenic masses with cystic areas. CT demonstrated heterogeneously enhancing masses with central cystic and necrotic areas. This very unusual occurrence of a tumor in infancy with an intraabdominal location is described and the radiographic imaging is presented.