A CASE OF MUCIN PRODUCING BILE DUCT ADENOMA WITH REPEATED ACUTE PANCREATITIS

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  • 急性膵炎を繰り返した粘液産生胆管腺腫の1例

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Abstract

Mucin producing bile duct tumor is a rare disease and 104cases of the disease have been described in the Japanese literature. Of those 104 cases, 91cases were malignant and only 7 cases included ours were benign. We experienced a case of mucin producing bile duct adenoma with repeated acute pancreatitis. A 48-year-old woman was admitted to the hospital for with a diagnosis of repeated acute pancreatitis. ERCP revealed a defect in a dilated common bile duct and a slightly dilated posterior intrahepatic bile duct. EST was performed and revealed the defect in the common bile duct was mucin. No abnomality was found in the pancreatic duct. Peroral cholangioscopy revealed that mucin was localised only in a posterior intrahepatic bile duct. Posterior hepatic segmentectomy was performed under the diagnosis of mucin producing bile duct tumor of posterior intrahepatic bile duct. The resected specimen showed a flat glanular elevation lesion with the diameter of 7mm in locally dome like dilated posterior intrahepatic bile duct. The histopathological diagnosis was papillary adenoma.

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