Malignant change in chronic gastric ulcer.
D000328:Adult; D001706:Biopsy; D002277:Carcinoma / Q000453:epidemiology* / Q000209:etiology; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000453:epidemiology* / Q000209:etiology; D013276:Stomach Ulcer / Q000150:complications* / Q000601:surgery