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  • Title: Carcinoid tumors in the gastrointestinal tract--an analysis of 156 cases.
    Author: Mårtensson H, Nobin A, Sundler F.
    Journal: Acta Chir Scand; 1983; 149(6):607-16. PubMed ID: 6650073.
    Abstract:
    A series of 156 patients with gastrointestinal carcinoid tumors is presented. The tumors were grouped as foregut, midgut and hindgut carcinoids. The appendiceal tumors were grouped separately. Lack of specific symptoms resulted in only 26% correct presumptive diagnoses. This also reflected the patient's delay greater than 2 years in 10% and doctor's delay greater than 2 years in 29%. In the larger group (midgut), 41% were multiple primary tumors. Liver metastases were found in 46% and tumors bigger than 1 cm metastasized to the liver in 58%. The five-year survival of patients with liver metastases was 43% while the figure for those without metastases was 80%. In 47 patients with appendiceal carcinoids, 68% had tumors less than 1 cm. No metastases to the regional lymph nodes, viscera or skeleton were found. Thirty-three patients were traced and none had died of the tumor. Two foregut and 4 hindgut tumors were re-examined using immunocytochemistry. In one of the foregut tumors, cells containing serotonin were found while the other one contained gastrin cells. In 3 hindgut tumors PP-cells were seen and one of them also harbored glucagon/glicentin cells. In one hindgut tumor no peptides were found.
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