Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Synchronous Early Gastric Cancer/Neuroendocrine Tumor Associated with Autoimmune Gastritis Completely Resected with Endoscopic Submucosal Dissection
Kimitoshi KuboNoriko KimuraSoichiro MatsudaKatsuhiro MabeMototsugu Kato
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JOURNAL OPEN ACCESS

2019 Volume 58 Issue 18 Pages 2633-2637

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Abstract

Synchronous early gastric cancer/neuroendocrine tumor (NET) associated with autoimmune gastritis is rare, and its endoscopic and pathological features remain poorly described. Screening esophagogastroduodenoscopy performed on a 71-year-old man revealed a whitish, superficial elevated lesion and a submucosal tumor with redness that appeared slightly centrally depressed. Endoscopic submucosal dissection (ESD) allowed these lesions to be resected with negative margins, and they were diagnosed as tubular adenocarcinoma, well-differentiated type (tub1), pT1a (M) and NET G1, pT1b (SM). To our knowledge, this is the first report describing the endoscopic and pathological findings of synchronous early gastric cancer/NET that was amenable to complete resection with ESD.

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© 2019 by The Japanese Society of Internal Medicine
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