Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection

Yasushi Yamasaki; Junichiro Nasu; Kou Miura; Yoshiyasu Kono; Hiromitsu Kanzaki; Keisuke Hori; Takehiro Tanaka; Masahide Kita; Takao Tsuzuki; Minoru Matsubara; Seiji Kawano; Yoshiro Kawahara; Masahiro Tabata; Hiroyuki Okada; Kazuhide Yamamoto

doi:10.2169/internalmedicine.54.3469

Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection

Yasushi Yamasaki, Junichiro Nasu, Kou Miura, Yoshiyasu Kono, Hiromitsu Kanzaki, Keisuke Hori, Takehiro Tanaka, Masahide Kita, Takao Tsuzuki, Minoru Matsubara, Seiji Kawano, Yoshiro Kawahara, Masahiro Tabata, Hiroyuki Okada, Kazuhide Yamamoto

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14 Citations (Scopus)

Abstract

Composite tumors in the stomach composed of adenocarcinoma and neuroendocrine carcinoma are rare. We herein report a case of intramucosal gastric mixed adenoneuroendocrine carcinoma (MANEC) that was treated with endoscopic submucosal dissection (ESD). A 77-year-old man who had previously received ESD for early gastric adenocarcinoma underwent esophagogastroduodenoscopy for screening, which showed a depressed lesion on the lesser curvature of the antrum. The tumor was removed en bloc via ESD and pathologically diagnosed as MANEC. The tumor was located within the mucosal layer, and no lymphovascular invasion was evident. Seven months after the ESD procedure, the patient is currently feeling well without recurrence or metastasis.

Original language	English
Pages (from-to)	917-920
Number of pages	4
Journal	Internal Medicine
Volume	54
Issue number	8
DOIs	https://doi.org/10.2169/internalmedicine.54.3469
Publication status	Published - 2015

Keywords

Adenocarcinoma
Endoscopic submucosal dissection
Mixed adenoneuroendocrine carcinoma

ASJC Scopus subject areas

Internal Medicine

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10.2169/internalmedicine.54.3469

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Yamasaki, Y., Nasu, J., Miura, K., Kono, Y., Kanzaki, H., Hori, K., Tanaka, T., Kita, M., Tsuzuki, T., Matsubara, M., Kawano, S., Kawahara, Y., Tabata, M., Okada, H., & Yamamoto, K. (2015). Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection. Internal Medicine, 54(8), 917-920. https://doi.org/10.2169/internalmedicine.54.3469

Yamasaki, Y, Nasu, J, Miura, K, Kono, Y , Kanzaki, H, Hori, K, Tanaka, T, Kita, M, Tsuzuki, T, Matsubara, M, Kawano, S , Kawahara, Y , Tabata, M, Okada, H & Yamamoto, K 2015, 'Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection', Internal Medicine, vol. 54, no. 8, pp. 917-920. https://doi.org/10.2169/internalmedicine.54.3469

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title = "Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection",

abstract = "Composite tumors in the stomach composed of adenocarcinoma and neuroendocrine carcinoma are rare. We herein report a case of intramucosal gastric mixed adenoneuroendocrine carcinoma (MANEC) that was treated with endoscopic submucosal dissection (ESD). A 77-year-old man who had previously received ESD for early gastric adenocarcinoma underwent esophagogastroduodenoscopy for screening, which showed a depressed lesion on the lesser curvature of the antrum. The tumor was removed en bloc via ESD and pathologically diagnosed as MANEC. The tumor was located within the mucosal layer, and no lymphovascular invasion was evident. Seven months after the ESD procedure, the patient is currently feeling well without recurrence or metastasis.",

keywords = "Adenocarcinoma, Endoscopic submucosal dissection, Mixed adenoneuroendocrine carcinoma",

author = "Yasushi Yamasaki and Junichiro Nasu and Kou Miura and Yoshiyasu Kono and Hiromitsu Kanzaki and Keisuke Hori and Takehiro Tanaka and Masahide Kita and Takao Tsuzuki and Minoru Matsubara and Seiji Kawano and Yoshiro Kawahara and Masahiro Tabata and Hiroyuki Okada and Kazuhide Yamamoto",

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doi = "10.2169/internalmedicine.54.3469",

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AU - Yamasaki, Yasushi

AU - Nasu, Junichiro

AU - Miura, Kou

AU - Kono, Yoshiyasu

AU - Kanzaki, Hiromitsu

AU - Hori, Keisuke

AU - Tanaka, Takehiro

AU - Kita, Masahide

AU - Tsuzuki, Takao

AU - Matsubara, Minoru

AU - Kawano, Seiji

AU - Kawahara, Yoshiro

AU - Tabata, Masahiro

AU - Okada, Hiroyuki

AU - Yamamoto, Kazuhide

PY - 2015

Y1 - 2015

N2 - Composite tumors in the stomach composed of adenocarcinoma and neuroendocrine carcinoma are rare. We herein report a case of intramucosal gastric mixed adenoneuroendocrine carcinoma (MANEC) that was treated with endoscopic submucosal dissection (ESD). A 77-year-old man who had previously received ESD for early gastric adenocarcinoma underwent esophagogastroduodenoscopy for screening, which showed a depressed lesion on the lesser curvature of the antrum. The tumor was removed en bloc via ESD and pathologically diagnosed as MANEC. The tumor was located within the mucosal layer, and no lymphovascular invasion was evident. Seven months after the ESD procedure, the patient is currently feeling well without recurrence or metastasis.

AB - Composite tumors in the stomach composed of adenocarcinoma and neuroendocrine carcinoma are rare. We herein report a case of intramucosal gastric mixed adenoneuroendocrine carcinoma (MANEC) that was treated with endoscopic submucosal dissection (ESD). A 77-year-old man who had previously received ESD for early gastric adenocarcinoma underwent esophagogastroduodenoscopy for screening, which showed a depressed lesion on the lesser curvature of the antrum. The tumor was removed en bloc via ESD and pathologically diagnosed as MANEC. The tumor was located within the mucosal layer, and no lymphovascular invasion was evident. Seven months after the ESD procedure, the patient is currently feeling well without recurrence or metastasis.

KW - Adenocarcinoma

KW - Endoscopic submucosal dissection

KW - Mixed adenoneuroendocrine carcinoma

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Intramucosal gastric mixed adenoneuroendocrine carcinoma completely resected with endoscopic submucosal dissection

Abstract

Keywords

ASJC Scopus subject areas

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