Schatzki ring


Contractile ring in the distal esophagus best identified on barium esophagram.

Radiography more sensitive than endoscopy in detection.

Critical diameter associated with dysphagia 11-13mm.

Patients with ring greater than 18-mm are asymptomatic.

Tendency for the diameter of the ring to decrease over time and a 1mm decrease in diameter associated with a 46% increase in the likelihood of dysphagia.

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