Liver teratoma.

True liver teratomas are exceptional tumors, with only 25 cases reported in the radiology literature. Most cases reported were either intraperitoneal or retroperitoneal teratomas that had invaded the liver. The authors present a 27-year-old woman with a liver complex mass found incidentally at computed tomography (CT). The different imaging studies demonstrated that the lesion was composed of macroscopic fat, with a central soft tissue component and a calcification. The patient underwent surgery and the final diagnosis was a benign liver teratoma.