Korean J Gastrointest Endosc.  1998 Oct;18(5):788-797.

Two Cases of Villous Adenoma of the Common Bile Duct: Endoscopic Diagnosis and Treatment

  • 1Department of Gastroenterology, Ajou University School of Medicine, Suwon, Korea.
  • 2Department of Anatomical Pathology, Ajou University School of Medicine, Suwon, Korea.
  • 3Department of Internal Medicine, Nowon Eulji Hospital, Seoul, Korea.


Villous adenomas of the common bile duct are rare and accordingly it is difficult to render a firm preoperative diagnosis. They are the unusual cause of bile duct obstruction and can mimic malignant extrahepatic biliary tumors or stones. Until recently, only a few cases had been reported in the medical literature. Although some authors advocate open surgical excision, especially with recurrence or carcinomatous change, an endoscopic resection of a distal common bile duct adenoma is a viable alternative for those patients considered poor surgical risks. We present two cases of villous adenoma of the common bile duct diagnosed by an endoscopic biopsy and endoscopically resected, with review of the relevant literature on the subject.


Villous adenoma; Common bile duct; Endoscopic treatment
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