title: Cystic intraductal papillary adenocarcinoma of the bile duct of the caudate lobe initially manifesting as a simple cyst on CT.
abstract: Cystic-form, intraductal papillary neoplasms of the bile ducts (IPNBs) usually manifest as a multilocular cystic mass or unilocular cystic mass with papillary mural nodules. To our knowledge, cystic IPNBs forming single, unilocular cystic lesions without a visible papillary tumor and mimicking a simple hepatic cyst or mucinous cystadenoma have never been reported. Here, we report a case of cystic IPNB that initially appeared as a simple cyst and subsequently became a unilocular cystic mass with a papillary mural nodule on follow-up CT.
authors.affiliation: Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, 149 Sangil-Dong, Gangdong-Gu, Seoul, 134-727, Korea, rad2000@hanmail.net.
authors.forename: Sang Won
authors.initials: SW
authors.lastname: Kim
authors.forename: Hyun Cheol
authors.initials: HC
authors.lastname: Kim
authors.forename: Dal Mo
authors.initials: DM
authors.lastname: Yang
authors.forename: Kyu Yeoun
authors.initials: KY
authors.lastname: Won
authors.forename: Bum-Soo
authors.initials: BS
authors.lastname: Kim
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000000981:diagnostic imaging* / Q000601:surgery; D001649:Bile Duct Diseases / Q000000981:diagnostic imaging; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging* / Q000601:surgery; D003287:Contrast Media; D003560:Cysts / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media