Esophageal rings may also occur as a result of drinking a caustic material and subsequent scar formation. The condition may produce swallowing difficulties . Reflux does usually not occur with this condition.
Risk factors are unknown.
The incidence is 4 out of 10,000 people. An alternative treatment consists of dilating the ring by passing an endoscope or dilator through the ring. The outcome is usually good with treatment. There are usually no complications except for the noted swallowing difficulty and chest pain .