AB211. SOH26AB_0283. Case report of occult bile duct papillary carcinoma: an unanticipated diagnosis after laparoscopic cholecystectomy

Papillary carcinoma of the bile duct is a rare biliary malignancy, often presenting with nonspecific symptoms or mimicking benign biliary disease. Preoperative diagnosis is challenging, and incidental detection following routine procedures is uncommon.