An incidental finding of carcinoid tumor of the cystic duct.

Cystic duct carcinoids are extremely rare tumors. We present a 58-year-old female with carcinoid tumor found within the cystic duct margin following laparoscopic cholecystectomy. She subsequently underwent surgical resection with a Roux-en-Y hepaticojejunostomy. No standard guidelines currently exist regarding surgical excision of these rare tumors. Therefore, we conducted a thorough review of the literature to recommend complete oncologic surgical resection with re-establishment of biliary continuity as the mainstay of definitive treatment; adjuvant therapy currently remains investigational. Long-term prognosis is good with this approach.