title: [Synchronous multiple early gastric cancer; study of surgically resected stomach].
abstract: Synchronous multiple early gastric cancer (SMEGC) was found in 202(20.9%) of 966 surgically resected primary early gastric cancer (EGC). The incidence of SMEGC clinically diagnosed was 9.0%, and that increased to 19.3% by pathological macroscopical examine. SMEGC was more frequent in male patients than in female patients. Patients older than 60 years old occupied 80.7% of SMEGC. 72.8% of SMEGC had two and 27.2% had more than three EGC. 56.7% of SMEGC had intramucosal cancers, 36.4% had submucosa-invasing and intramucosal cancer, and 6.9% had submucosa-invasing cancers. In 78.7% of SMEGC, the main and associated cancer were composed of differentiated type adenocarcinoma, 20.7% of SMEGC synchronously contained gastric adenoma. We should be cautious that other EGC may be present when preoperative diagnosing the patients with EGC and macroscopical examining the resected stomach.
authors.affiliation: Department of Medical Technology, College of Biomedical Technology of Niigata.
authors.forename: M
authors.initials: M
authors.lastname: Iwafuchi
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology / Q000601:surgery*; D000236:Adenoma / Q000473:pathology / Q000601:surgery*; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000473:pathology / Q000601:surgery*