title: Minute squamous cell carcinoma of the gallbladder: a case report.
abstract: Following a simple cholecystectomy, a 63-year-old woman with gallstones was histologically diagnosed as having minute squamous cell carcinoma of the gallbladder. A laparotomy revealed a small, firm nodule that appeared to be an adenoma, which was palpated in the fundus of the gallbladder. The resected gallbladder contained 37 small stones and a small and firm mass (0.4 x 0.4 x 0.3 cm in size) on the mucosal side. Histologically, a pure type of well-differentiated squamous cell carcinoma of the gallbladder was diagnosed. To our knowledge, this is the first case of a minute and pure type of squamous cell carcinoma in the gallbladder. This case may have implications for the histogenesis of squamous cell carcinoma of the gallbladder.
authors.affiliation: Department of Surgery, National Numata Hospital, Gunma, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Roppongi
authors.forename: I
authors.initials: I
authors.lastname: Takeyoshi
authors.forename: S
authors.initials: S
authors.lastname: Ohwada
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Fujii
authors.forename: M
authors.initials: M
authors.lastname: Honma
authors.forename: Y
authors.initials: Y
authors.lastname: Morishita
mesh_terms: D000236:Adenoma / Q000175:diagnosis; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000473:pathology; D002763:Cholecystectomy; D002769:Cholelithiasis / Q000601:surgery; D003937:Diagnosis, Differential; D004848:Epithelium / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D005704:Gallbladder / Q000473:pathology; D005706:Gallbladder Neoplasms / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007813:Laparotomy; D008875:Middle Aged; D009092:Mucous Membrane / Q000473:pathology