Primary gastrointestinal lymphomas.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000145:classification / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008223:Lymphoma / Q000145:classification / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010954:Plasmacytoma / Q000175:diagnosis