Osteoclastoma-Like Giant Cell Tumor of the Liver, an Extremely Rare Tumor

: Giant cell rich hepatic tumors are divided into two types of mesenchymal and epithelial. Mesenchymal tumors are uncommon. Osteoclastoma-like giant cell tumor of the liver is an extremely rare mesenchymal hepatic tumor with very poor prognosis. To the best of our knowledge, only 5 cases have been reported in the English literature so far. Our case was a 64-year-old woman presented with abdominal pain. The patient was operated with the preoperative imaging diagnosis of angiosarcoma that after pathologic examination turned out to be osteoclastoma-like giant cell tumor. Unfortunately, the patient died shortly after surgery.