[Gastric submucosal tumore (SMT)]
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The clinical significance of the gastric SMTs is quite different from the esophageal SMTs. It's because of gastric GIST, SMT-like cancer and other important lesions. However, the majority of small gastric SMTs are clincally benign. When a small gastric SMT is found for the first time, I recommend to take 2 biopsies. If there is no significant change in the follow-up endoscopy, you don't need to take biopsy anymore. You should focus on the comparison of the size and the shape.
If there is a change in the size or the shape, I would recommend to re-evaluate the gastric SMT including endoscopic biopsies.
An ulcer developed in the follow-up endoscopy.