胆嚢内で深部浸潤を呈した表層拡大型中部胆管癌の１例

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  • A resected case of middle bile duct carcinoma associated with superficial spread and invasion to the gallbladder.

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A 79-year-old man was admitted to the hospital because of jaundice with dark urine. PTBD revealed complete obstruction of the middle bile duct. PTCS visualized that the right intrahepatic bile duct (RHD) was narrowing with carcinoma cells. We perfomed extended right hepatic lobectomy (right hepatic lobe, S4a, S1) with a diagnosis of middle bile duct (Bm) carcinoma or gallbladder (GB) carcinoma. The two tumors were present in the Bm and the neck of GB, and the cystic duct (CD) was patent. Histologically, the Bm tumor was well differentiated tubular adenocarcinoma, and the neck of GB tumor was poorly differentiated tubular adenocarcinoma. Well differentiated tubular adenocarcinoma revealed a superficial spread to RHD, Bl, CD, GB. Bm carcinoma associated with superficial spread and invasion to the GB was diagnosed.

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