what is a schatzki ring
A Schatzki ring or SchatzkiâGary ring is a narrowing of the lower esophagus that can cause difficulty swallowing (dysphagia).The narrowing is caused by a ring of mucosal tissue (which lines the esophagus) or muscular tissue. Schatzki rings can be associated with swallow syncope, a rare variety of syncope. 2  Schatzki rings are associated with lesser incidence of Barrett's esophagus, which is considered to be a pre-cancerous condition of the esophagus in some cases.