A case of giant gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer

Hiroyuki Imaeda; Yasushi Iwao; Yoshikazu Tsuzuki; Shingo Miyaguchi; Atsubumi Nagata; Ichiro Takeuchi; Kiyotaka Kamegaya; Kazuo Nomoto; Mamoru Nishizawa; Yasuo Ohkura; Tozo Hosoi; Kensuke Kobayashi; Tetsu Watanabe

A case of giant gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer

Hiroyuki Imaeda, Yasushi Iwao, Yoshikazu Tsuzuki, Shingo Miyaguchi, Atsubumi Nagata, Ichiro Takeuchi, Kiyotaka Kamegaya, Kazuo Nomoto, Mamoru Nishizawa, Yasuo Ohkura, Tozo Hosoi, Kensuke Kobayashi, Tetsu Watanabe

Center for Preventive Medicine

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We report a patient with giant Yamada (Y)-3 type gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer. Sixty two year old man was admitted to our hospital due to endoscopic mucosectomy for early gastric cancer (type IIc+IIa) in the antrum. The removed lesion revealed histologically as well differentiated tubullar adenocarcinoma confined to the mucosa. Follow-up endoscopy about 10 months after mucosectomy showed a polypoid lesion in the resected site, which was identified histologically hyperplastic polyp. The polyp had grown up to Y-3 type, sized about 25mm in diameter, so it was resected by endoscopic polypectomy. A case of gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer has been rarely reported in Japan. The mechanism was still unknown, but was thought that excessive regeneration of epithelium was promoted by formation of ulcer after endoscopic mucosectomy, administration of H₂-receptor antagonist and mechanical stimulation by increased peristalsis.

Original language	English
Pages (from-to)	2853-2857
Number of pages	5
Journal	GASTROENTEROLOGICAL ENDOSCOPY
Volume	38
Issue number	12
Publication status	Published - 1996 Dec

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging
Gastroenterology

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A case of giant gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer. / Imaeda, Hiroyuki; Iwao, Yasushi; Tsuzuki, Yoshikazu; Miyaguchi, Shingo; Nagata, Atsubumi; Takeuchi, Ichiro; Kamegaya, Kiyotaka; Nomoto, Kazuo; Nishizawa, Mamoru; Ohkura, Yasuo; Hosoi, Tozo; Kobayashi, Kensuke; Watanabe, Tetsu.

In: GASTROENTEROLOGICAL ENDOSCOPY, Vol. 38, No. 12, 12.1996, p. 2853-2857.

Research output: Contribution to journal › Article › peer-review

Imaeda, Hiroyuki ; Iwao, Yasushi ; Tsuzuki, Yoshikazu ; Miyaguchi, Shingo ; Nagata, Atsubumi ; Takeuchi, Ichiro ; Kamegaya, Kiyotaka ; Nomoto, Kazuo ; Nishizawa, Mamoru ; Ohkura, Yasuo ; Hosoi, Tozo ; Kobayashi, Kensuke ; Watanabe, Tetsu. / A case of giant gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer. In: GASTROENTEROLOGICAL ENDOSCOPY. 1996 ; Vol. 38, No. 12. pp. 2853-2857.

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abstract = "We report a patient with giant Yamada (Y)-3 type gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer. Sixty two year old man was admitted to our hospital due to endoscopic mucosectomy for early gastric cancer (type IIc+IIa) in the antrum. The removed lesion revealed histologically as well differentiated tubullar adenocarcinoma confined to the mucosa. Follow-up endoscopy about 10 months after mucosectomy showed a polypoid lesion in the resected site, which was identified histologically hyperplastic polyp. The polyp had grown up to Y-3 type, sized about 25mm in diameter, so it was resected by endoscopic polypectomy. A case of gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer has been rarely reported in Japan. The mechanism was still unknown, but was thought that excessive regeneration of epithelium was promoted by formation of ulcer after endoscopic mucosectomy, administration of H2-receptor antagonist and mechanical stimulation by increased peristalsis.",

author = "Hiroyuki Imaeda and Yasushi Iwao and Yoshikazu Tsuzuki and Shingo Miyaguchi and Atsubumi Nagata and Ichiro Takeuchi and Kiyotaka Kamegaya and Kazuo Nomoto and Mamoru Nishizawa and Yasuo Ohkura and Tozo Hosoi and Kensuke Kobayashi and Tetsu Watanabe",

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AU - Nagata, Atsubumi

AU - Takeuchi, Ichiro

AU - Kamegaya, Kiyotaka

AU - Nomoto, Kazuo

AU - Nishizawa, Mamoru

AU - Ohkura, Yasuo

AU - Hosoi, Tozo

AU - Kobayashi, Kensuke

AU - Watanabe, Tetsu

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N2 - We report a patient with giant Yamada (Y)-3 type gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer. Sixty two year old man was admitted to our hospital due to endoscopic mucosectomy for early gastric cancer (type IIc+IIa) in the antrum. The removed lesion revealed histologically as well differentiated tubullar adenocarcinoma confined to the mucosa. Follow-up endoscopy about 10 months after mucosectomy showed a polypoid lesion in the resected site, which was identified histologically hyperplastic polyp. The polyp had grown up to Y-3 type, sized about 25mm in diameter, so it was resected by endoscopic polypectomy. A case of gastric hyperplastic polyp developing after endoscopic mucosectomy for early gastric cancer has been rarely reported in Japan. The mechanism was still unknown, but was thought that excessive regeneration of epithelium was promoted by formation of ulcer after endoscopic mucosectomy, administration of H2-receptor antagonist and mechanical stimulation by increased peristalsis.

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