Gastric intramural hematoma accompanied by severe epigastric pain and hematemesis after endoscopic mucosal resection

Figure 1 Subepithelial tumor in the stomach antrum. A: Endoscopic examination showed a subepithelial tumor in the antrum; B: Endoscopic ultrasonography revealed that the tumor was localized in the mucosal layer.

Figure 2 Endoscopic mucosal resection. A: After injection of 15 mL saline, the whole nidus was lifted satisfactorily. However, an area of the uplifted mucosal layer was slightly blue; B: The lesion was successfully removed by high-frequency electrocoagulation, and a white wound was observed.

Figure 3 Pathologic examination revealed that the removed lesion from the gastric antrum was a tubular adenoma and Helicobacter pylori was not found.

Figure 4 Emergency endoscopy. A: A 4 cm × 5 cm diverticulum-like defect in anterior gastric antrum wall; B: A 4 cm × 8 cm intramural hematoma adjacent to the endoscopic submucosal dissection lesion and active bleeding.