A very rare case of hepatocellular carcinoma (HCC) extending within the common bile duct (CBD) and left intrahepatic duct (IHD) with no detectable primary hepatic tumor in a 52-year-old Taiwanese man is reported.

• 摘要肝细胞癌（肝癌）是国内恶性肿瘤死因中的第一位，住院的大型肝癌患者常见症状包括腹痛、食欲不振、体重减轻、腹胀、全身虚弱、腹部肿块、发烧等。