title: [A case report of endosonography used for the diagnosis of early gastric cancer and gastrointestinal stromal tumor].
abstract: A 79-year-old man was referred to our hospital complaining of weight loss. Esophagogastroduodenoscopy revealed a flat, elevated lesion of 30-mm diameter located on the posterior wall of the upper gastric body. The lesion was histologically diagnosed as a well-differentiated adenocarcinoma. Endosonography showed a submucosal tumor under the carcinoma, which was highly suspicious of a gastrointestinal tumor derived from the muscle layer. Adenocarcinoma was diagnosed as an intramucosal lesion, but laparoscopic fundectomy was performed because of the submucosal tumor. Pathological diagnosis was U, less, pType 0-IIa, 18×30 mm, pT1b (SM1), tub2, int, INFa, ly0, v0, pN0, H0, P0, CYX, M0, pStage IA, gastrointestinal stromal tumors, prognostic group 1.
authors.affiliation: Department of Gastroenterology, Kurashiki Central Hospital.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Shimodate
authors.forename: Kaori
authors.initials: K
authors.lastname: Sugiura
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Mitani
authors.forename: Kyouko
authors.initials: K
authors.lastname: Hamaguchi
authors.forename: Akira
authors.initials: A
authors.lastname: Doi
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Nishimura
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Fujita
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Mouri
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Matsueda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamamoto
mesh_terms: D000368:Aged; D018479:Early Intervention, Educational; D019160:Endosonography; D005743:Gastrectomy; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008297:Male; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery