This is the normal appearance of the stomach, which has been opened along the greater curvature. The esophagus is at the left. In the fundus can be seen the lesser curvature. Just beyond the antrum is the pylorus emptying into the first portion of duodenum is at the lower right. The normal appearance of the gastric fundus on upper GI endoscopy is shown below at the left, with the normal duodenal appearance at the right.