title: [Squamous cell carcinoma of the gallbladder associated with adenocarcinoma in situ: a case report].
abstract: Squamous cell carcinoma of the gallbladder associated with adenocarcinoma in situ of the mucosal columnar epithelium is extremely rare. The case presented here is the first to be documented at the Veterans General Hospital-Taipei. In this case, dysplastic columnar epithelium was discovered alongside with squamous cell carcinoma and squamous metaplasia. Focal adenocarcinoma in situ was also identified. The significance of these associated lesions and the histogenesis of squamous metaplasia and squamous cell carcinoma in gallbladder are discussed.
authors.affiliation: Department of Pathology, Veterans General Hospital Taipei, R.O.C.
authors.forename: J S
authors.initials: JS
authors.lastname: Shyu
authors.forename: J S
authors.initials: JS
authors.lastname: Wang
authors.forename: H C
authors.initials: HC
authors.lastname: Liu
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D002278:Carcinoma in Situ / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D005706:Gallbladder Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*