Primary hemangiopericytoma of the liver: sonographic findings.

Hemangiopericytoma (HP) is an uncommon vascular tumor that rarely develops in the liver. We present the case of a 68-year-old female with a primary HP involving the right lobe of the liver, detected during an abdominal screening sonography. The lesion was further evaluated using multidetector CT. The patient was treated with a right hepatectomy, and a pathologic diagnosis was made. Two years later, there was no evidence of recurrence.