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Duodenal Carcinoid Diagnosed by Endoscopic Biopsy, Report of a Case M. Tomimatsu 1 , S. Watanabe 1 , Y. Ota 1 , K. Shiratori 1 , M. Maruyama 1 1The Institute of Gastroenterology, Tokyo Women's Medical College pp.971-976
Published Date 1982/9/25
DOI https://doi.org/10.11477/mf.1403108810
  • Abstract
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 A -50-year-old man received gastric mass screening although he had no symptoms to complain of. At this time he was found to harbor a round tumor in the duodenal bulbus by upper gastrointestinal roentgenograms and it was diagnosed histologically as carcinoid tumor by endoscopic biopsy.

 The tumor, measuring 8×7×5 mm in size, was removed by surgical operation. It revealed a hemispheric shape and its cut surface was yellow. Microscopic examination revealed a carcinoid composed of tumor cells of uniform size with trabecular structure. Argyrophil reaction by Grimelius method showed argyrophil granules, but the argentaffin reaction by Fontana-Masson method was negative.

 Electromicroscopic finding revealed dense and round secretory granules, measuring 200~300 nm, in the cytoplasm of the tumor cell.

 Serum serotonin and calcitonin were elevated above normal values in the preoperative measurement, but urinary content of 5-HIAA was within normal level. After operation, serum serotonin and calcitonin returned to normal. The carcinoid tumor was found to contain 7.53 μg of serotonin pergram wet weight of tissue.

 So far we have been able to collect 67 reported cases of duodenal carcinoid in Japan including the present case, but only nine of them had been diagnosed by endoscopic biopsy before operation.


Copyright © 1982, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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