A CASE OF COMMON BILE DUCT CARCINOMA, SUPERFICIALSPREADING TYPE, WHOSE INVASIVE EXTENT WAS DIAGNOSED BY CHOLANGIOSCOPY BEFORE OPERATION.
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A 74-year-old male was admitted to our hospital with complaints of jaundice and abdominal pain. Percutaneous transhepatic cholangiography (PTC) showed a filling defect at the distal common bile duct. The localized tumor was observed by percutaneous tran-shepatic cholangioscopy (PTCS), and the reddish and discolored mucosa was observed extensively in the common bile duct, and cholangioscopic biopsy of the bile duct mucosa away from the primary tumor confirmed malignancy. Curative pancreaticoduodenectomy was performed and the common hepatic duct was resected. Histologically, it was diagnosed as papillotubular adenocarcinoma and it was localized in the bile duct wall, and spreaded superficially in the common hepatic duct. The pre-operative PTCS should be used in all cases of obstructive jaundice. The din-ical improvement of their radical resections will be expected by use of this technique.
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