Type III hiatal hernia

Upper GI (gastrointestinal) series showing a type III hiatal hernia. Type III hernias have elements of both types I and II. With progressive enlargement of the hernia through the hiatus, the phrenoesophageal membrane stretches, displacing the gastroesophageal junction above the diaphragm, thereby adding a sliding element to the type II hernia.

Normal air-contrast upper GI study showing normal gastric folds and small intestinal anatomy, and no masses.