The hepatic malignant mesenchymoma: a case report.

We report a case of hepatic mesenchymoma in an 8-year-old girl who presented with abdominal pain and ultrasonographic diagnosis of hepatic echinococcosis. Due to the good general condition of the patient and the diagnostic confirmation of liver hydatid disease by the CT scan, antiparasitic therapy with albendazole was started. After 1 month of therapy the girl's general condition worsened as did the ultrasonographic picture. On laparatomy a large cystic mass was observed within the right hepatic lobe and was removed. Pathological examination of the mass excluded an echinococcal cyst and demonstrated a malignant hepatic mesenchymoma.