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. 2023 Jul 14;16:107–115. doi: 10.2147/CEG.S417644

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© 2023 Izumo et al.

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Endoscopic finding before treatment. On esophagogastroduodenoscopy before treatment, an irregular ulcerative tumor in the middle to lower stomach and the pyloric ring was constricted so that the scope could barely pass through it.