Fig. 1

Photographic documentation protocol of the stomach that begins as soon as the endoscope is inserted into the gastric antrum. With the anterograde view, endoscopic photographs of 4 quadrants of the gastric antrum, body, and upper middle body are taken. Then, with the retroflex view, endoscopic photographs of 4 quadrants of the fundus cardia, and 3 quadrants of the upper middle body and gastric incisura are taken. The SSS series consists of 22 endoscopic photographs of the stomach. Images where the intended category is not clearly visible, or a documented lesion is present are categorized as “NA”. The abbreviations are L for lesser curvature, A for anterior wall, G for greater curvature, and P for posterior wall.