Retrospective Histological Studies on Biopsied Gastric Lesions of Patients in Whom Cancer was Diagnosed at Follow-up Examination

摘要: Serial biopsy specimens of gastric lesions patients in whom cancer was diagnosed at follow-up examination were reexamined retrospectively; the source materials 17,429 biopsies carried out on 14,779 from 1971 to 1985 Aichi Cancer Center Hospital. Among these cases, cancers found 34 cases locations distinct initially biopsied lesions, and 41 cancerous changes detected original lesions. These amounted 0.5% total with negative results. The average interval first last endoscopic 52.1 months longest 150 case a scarred lesion. Based reexamination histology taken examination, classified into three subgroups: 1) no precancerous atypical observed, 2) doubtful observed 3) minute or slight malignant did exist but had been overlooked. number category 33 (80.5%), among which ulcer its scar most common, second 6 (14.6%), them being polypoid third 2 (4.9%). Histological features some each subgroup are presented results discussed.