This hernia is above the diaphragmatic hiatus. A Schatzki's ring is seen in the distal esophagus. The proximal mucosa is stratified squamous, the mucosa below the ring is gastric columnar epithelium. The ring is sufficiently tight to cause dysphagia. The ring is frequently associated with gastroesophageal reflux disease but may have other etiologies.
Dilatation is usually sufficient to open the stricture.
The next four slides show the stages of esophagitis as classified by endoscopy. This slide shows Stage I esophagitis. There are several linear, non-confluent red streaks extending up the esophagus. These red patches or streaks may be covered with a fine white exudate. Stage II esophagitis is demonstrated with white-based erosions extending up the esophagus.