Fig. 1From: Perigastric abscess caused by delayed perforation after gastric endoscopic submucosal dissection: successful conservative treatment without perforation closure: a case reporta, b An upper gastrointestinal endoscopy revealed an 18-mm faded, superficial flat lesion on the posterior wall of the gastric antrum. c No muscle injury, muscle layer exposure, and microperforation observed during endoscopic submucosal dissectionBack to article page