title: Intraductal papillary cholangiocarcinoma with aneurismal dilation: a case of the mimicking abscess.
abstract: A case of cystic intraductal papillary cholangiocarcinoma is presented. A 58-year-old male patient presented with fever, chills, epigastric and right upper quadrant pain for 15 days. Clinically and radiologically, he was diagnosed as having liver abscess. After ultrasonography and abdominal computed tomography were taken, percutaneous drainage was performed and pus was drained. Computed tomography revealed a huge, multiloculated, septated cystic lesion in the right lobe of the liver. On the pathologic exam, the cystic lesion was an aneurismally dilated tumor, which spread diffusely and contiguously along the intrahepatic bile duct and microscopically the lesion was composed of a single layer of tall columnar tumor cells with short intraluminal papillary projections. We present the unusual case of intraductal papillary cholangiocarcinoma with aneurismal dilation and with superimposed infection.
authors.affiliation: Department of Radiology, Chonbuk National University Hospital, 634-18 Keumam-Dong, Chonju-shi, Chonbuk, 561-712, South Korea.
authors.forename: Gong-Yong
authors.initials: GY
authors.lastname: Jin
authors.forename: Jeong-Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Hee-Chul
authors.initials: HC
authors.lastname: Yu
authors.forename: Woo Seong
authors.initials: WS
authors.lastname: Mun
authors.forename: Chong-Soo
authors.initials: CS
authors.lastname: Kim
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D018281:Cholangiocarcinoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008100:Liver Abscess / Q000000981:diagnostic imaging; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed