A case of bile duct cancer developing 9 years after treatment of choledocholithiasis in a patient with a history of Billroth II gastrectomy

Abstract

There are few reports of bile duct cancer detected during long-term follow-up after treatment of choledocholithiasis, which is a rare occurrence. We report one such rare case. A 67-year-old man with a history of Billroth II gastrectomy who had undergone endoscopic sphincterotomy for choledocholithotomy 9 years ago was referred to our hospital for recurrent cholangitis caused by choledocholithiasis. Double-balloon enteroscopy-assisted endoscopic retrograde cholangiopancreatography showed a stenosis in the common hepatic duct. Biliary cytology revealed that the stenosis was caused by an adenocarcinoma. There was no evidence of metastasis other than hilar lymph node metastasis, and left hepatic lobectomy was performed. Histopathological examination of the surgically resected specimen revealed a moderately differentiated tubular adenocarcinoma, pT1N1M0, pStage IIIB.●改行● Although cases of bile duct cancer caused by choledocholithiasis are rare, malignancy should be suspected in patients presenting with recurrent cholangitis after treatment for choledocholithiasis.