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Aregntaffin carcinoid tumor of the rectum

✍ Scribed by Aichi Yoshida; Mikio Yano; Yutaka Fujinaga; Chiaki Sano; Hiroshi Mori; Hiroki Yoshida; Ryo Fukunishi

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 489 KB
Volume: 48
Category: Article
ISSN: 0008-543X
DOI: 10.1002/1097-0142(19811101)48:9<2103::aid-cncr2820480931>3.0.co;2-#

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✦ Synopsis

A case of rectial carcinoid tumor in a 79-year-old Japanese man is reported. The tumor. 1.5 X 0.9 cm, was localized in both mucosa and submucosa of the rectum with neither invasion nor metastasis. Microscopically, neoplastic cells were mainly arranged in rosette-like and trabecular structures within thin fibrous stroma. Histochemically, both argyrophil and argentaffin reactions were positive. At the ultrastructural level, two distinctive types of neurosecretory granules were found in the cytoplasm of tumor cells.

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