title: Primary squamous cell carcinoma of the duodenum effectively treated with TS-1: a case report.
abstract: An 89-year-old man was admitted to our hospital for thorough investigation of refractory diabetes mellitus, which revealed primary squamous cell carcinoma of the duodenum. After two courses of chemotherapy, follow-up esophagoduodenogastroscopy and duodenal biopsy showed no evidence of tumor. No findings were suggestive of recurrence of the primary lesion 19 months after starting chemotherapy. This case suggests that chemotherapy including TS-1 may be effective for treating unresectable primary squamous cell carcinoma of the duodenum.
authors.affiliation: Department of Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Fujita
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Nasu
authors.forename: Hitomi
authors.initials: H
authors.lastname: Hamamoto
authors.forename: Fumiko
authors.initials: F
authors.lastname: Miyata
authors.forename: Akihiko
authors.initials: A
authors.lastname: Oshige
authors.forename: Shuho
authors.initials: S
authors.lastname: Shigenobu
authors.forename: Shuji
authors.initials: S
authors.lastname: Kanmura
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Numata
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Aozaki
authors.forename: Akio
authors.initials: A
authors.lastname: Ido
mesh_terms: D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy*; D004379:Duodenal Neoplasms / Q000188:drug therapy* / Q000473:pathology; D004384:Duodenoscopy; D006801:Humans; D008297:Male; D017640:Silicates / Q000627:therapeutic use*; D014025:Titanium / Q000627:therapeutic use*; D014057:Tomography, X-Ray Computed
chemical_list: D017640:Silicates; C103828:titanium silicide; D014025:Titanium