Typical endoscopic appearance of a benign gastric ulcer. The ulcer is on the angularis, the most common location for a gastric ulcer, and is well circumscribed without any associated mass effect The surrounding mucosa is mildly erythematous 斑的 and without nodularity结节 BTypical endoscopic appearance of a benign gastric ulcer. The ulcer is on the angularis, the most common location for a gastric ulcer, and is well circumscribed without any associated mass effect. The surrounding mucosa is mildly erythematous红 斑的 and without nodularity结节