title: Cystadenoma of the common bile-duct with malignant transformation.
abstract: A case of cystadenoma of the common bile-duct with areas of carcinoma in situ in a 61 year old woman is presented. Pre-operative investigations may confuse this rare tumour with the more common choledochal cyst although this case raises the possibility that this neoplasm may have arisen within a longstanding choledochal cyst. Due to the risk of malignant transformation, complete excision of any cystic lesion of the bile-duct is recommended.
authors.affiliation: University Department of Surgery, Christchurch School of Medicine, New Zealand.
authors.forename: G N
authors.initials: GN
authors.lastname: Coulter
authors.forename: J N
authors.initials: JN
authors.lastname: Baxter
mesh_terms: D002278:Carcinoma in Situ / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D003137:Common Bile Duct Diseases / Q000473:pathology*; D003138:Common Bile Duct Neoplasms / Q000473:pathology*; D003537:Cystadenoma / Q000473:pathology*; D003560:Cysts / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*