Primary hepatic choriocarcinoma in a 49-year-old man: Report of a case

Figure 1 Enhanced computed tomography of the liver and fludeoxyglucose-positron emission tomography. A: Enhanced computed tomography showed a multi-nodular tumor in the right lobe of the liver; B: Fludeoxyglucose-positron emission tomography scan showed accumulation in the liver with no accumulation in the testes.

Figure 2 Computed tomography and chest X-ray following ruptured of the tumors with respiratory failure. A: Computed tomography scan following rupture of the tumors showed an enlarged tumor with ascites and a right pleural effusion; B: Chest X-ray showed multiple lung metastases clinically associated with severe respiratory failure.

Figure 3 Photomicrographs of the liver tumor. A: Ovoid mononuclear cytotrophoblast cells (long arrow) encircled by large amorphous multinuclear syncytiotrophoblast cells (short arrows) among dark-red hemorrhagic tissue (hematoxylin and eosin, × 400); B: Immunohistochemical stain showing α-human chorionic gonadotropin (hCG) positive cells (× 400); C: Immunohistochemical stain showing β-hCG positive syncytiotrophoblast cells (× 400).