Malignant tumours of the small intestine.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000473:pathology / Q000628:therapy; D007421:Intestine, Small; D008297:Male; D008875:Middle Aged