On gastroscopy, glycogenic acanthosis is seen as a multitude of small white raised plaques of 2 mm to 10 mm in size, which may be seen throughout the esophagus. They tend to occur on esophageal folds, and may be missed if the esophagus is not well distended with air.
On gastroscopy, glycogenic acanthosis presents as a series of small white protrusions measuring 2 mm to 10 mm in length. These can be observed throughout the esophagus and are commonly found on esophageal creases. They might go undetected if the esophagus is not adequately inflated with air.