title: Benign schwannoma in the hepatoduodenal ligament: report of a case.
abstract: A 62-year-old woman with a large mass in the hepatic hilus underwent surgery. Histologically the tumor was predominantly composed of spindle-shaped cells with nuclear palisading and cells that stained positively for S-100 protein. The diagnosis was benign schwannoma (neurilemoma). The presence of lymphoid cuffing with lymphoid follicles in the capsule and xanthomatous change differed from conventional soft parts schwannoma and closely resembled benign schwannoma in the gastrointestinal tract.
authors.affiliation: First Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nagafuchi
authors.forename: H
authors.initials: H
authors.lastname: Mitsuo
authors.forename: S
authors.initials: S
authors.lastname: Takeda
authors.forename: K
authors.initials: K
authors.lastname: Ohsato
authors.forename: M
authors.initials: M
authors.lastname: Tsuneyoshi
authors.forename: M
authors.initials: M
authors.lastname: Enjoji
mesh_terms: D001650:Bile Duct Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D001652:Bile Ducts / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008022:Ligaments; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D009418:S100 Proteins / Q000032:analysis; D013194:Staining and Labeling
chemical_list: D009418:S100 Proteins