What are uncommon primary hepatic tumors?

Tumors include Angiosarcoma. Hepatoblastoma. Hepatic adenocarcinoma. Intrahepatic cholangiocarcinoma. Symptoms and signs include right upper quadrant pain, weight loss, hepatomegaly. CT scan shows hypervascular tumor for angiosarcoma; multiseptate cyst for adenocarcinoma. Workup: perform CT scan followed by Tumor biopsy or resection for diagnosis and treatment DIFFERENTIAL DIAGNOSIS: Hepatocellular carcinoma. Metastatic carcinoma. Benign neoplasm. Other abdominal malignancy.