title: Segmental pericholangial fibrosis: a peculiar benign fibrosing disease at the hepatic hilum.
abstract: The authors report on a 9-year-old child who underwent surgery to remove a tumor of the hepatic hilum with preoperative radiographic studies suggestive of malignancy, but whose surgical specimens showed a peculiar fibrosing disease. The lesion was localized to the bifurcation of the hepatic duct, where the bile duct wall and the surrounding tissue was markedly fibrotic. No malignant cells or epithelial destruction were seen. The patient's postoperative course was uneventful, and he is without any sign of recurrence 2 years after surgery. Because the histological features of this case do not correspond to any established disease, including primary sclerosing cholangitis, the authors believe it represents a new entity, segmental pericholangial fibrosis. Local resection resulted in a good outcome. A review of the literature disclosed a few similar cases with a benign clinical course.
authors.affiliation: Second Department of Surgery, Yokohama City University School of Medicine, and Hospital of Yokohama City University, Yokohama, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Takabe
authors.forename: Y
authors.initials: Y
authors.lastname: Nakatani
authors.forename: H
authors.initials: H
authors.lastname: Kanaya
authors.forename: A
authors.initials: A
authors.lastname: Takimoto
authors.forename: I
authors.initials: I
authors.lastname: Endo
authors.forename: H
authors.initials: H
authors.lastname: Sekido
authors.forename: H
authors.initials: H
authors.lastname: Shimada
mesh_terms: D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging; D017734:Bile Ducts, Extrahepatic / Q000473:pathology*; D002648:Child; D018281:Cholangiocarcinoma / Q000000981:diagnostic imaging; D001651:Cholestasis, Extrahepatic / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D003937:Diagnosis, Differential; D005355:Fibrosis; D006801:Humans; D006984:Hypertrophy; D008297:Male; D011859:Radiography