title: Primary squamous cell carcinoma of the stomach: a case report with a review of Japanese and Western literature.
abstract: A case of a 75 year-old male with primary squamous cell carcinoma of the stomach is reported. It is extremely rare to see squamous cell carcinoma developing in the stomach, without being accompanied by a component of adenocarcinoma. Up to the present, 18 Japanese and 62 Western cases of this type of carcinoma have been reported in the literature. The origin of this malignancy has not been well elucidated yet and thus, several plausible hypotheses have been proposed. In this presented case, the tumor consisted of only squamous cell carcinoma and the focus of squamous metaplasia was not found histologically in the adjacent mucosa. Therefore, it may be considered that the carcinoma arises from misplaced squamous cell nests of the stomach.
authors.affiliation: Department of Intenal Medicine, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Muto
authors.forename: T
authors.initials: T
authors.lastname: Hasebe
authors.forename: K
authors.initials: K
authors.lastname: Muro
authors.forename: N
authors.initials: N
authors.lastname: Boku
authors.forename: A
authors.initials: A
authors.lastname: Ohtsu
authors.forename: T
authors.initials: T
authors.lastname: Fujii
authors.forename: M
authors.initials: M
authors.lastname: Ono
authors.forename: H
authors.initials: H
authors.lastname: Taijiri
authors.forename: K
authors.initials: K
authors.lastname: Mukai
authors.forename: S
authors.initials: S
authors.lastname: Yoshida
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003431:Cross-Cultural Comparison; D005753:Gastric Mucosa / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D007564:Japan; D008297:Male; D013274:Stomach Neoplasms / Q000473:pathology*