title: Carcinoids of the gastrointestinal tract.
abstract: Carcinoids are tumors of the diffuse endocrine system. They occur most frequently in the gastrointestinal tract. Although they are considered malignant, their biologic behavior varies. The radiologic and pathologic appearances of gastric, duodenal, ileal, appendiceal, and rectal carcinoids are presented.
authors: Department of Radiologic Pathology, Armed Forces Institute of Pathology, Washington, DC 20306-6000.
authors: J L
authors: JL
authors: Buck
authors: L H
authors: LH
authors: Sobin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001063:Appendiceal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D002276:Carcinoid Tumor / Q000000981:diagnostic imaging* / Q000473:pathology; D002648:Child; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007078:Ileal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D011859:Radiography; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology