Large symptomatic esophageal diverticulum.

A 72-year-old woman was referred from primary care to the gastroenterology clinic because of heartburn and occasional dysphagia for the last 8 years, with some isolated food regurgitation events and no other warning signs; she is currently asymptomatic on omeprazole. Gastroscopy revealed a dilated esophagus and food remnants with inability to reach the gastric lumen, which led to the suspicion of achalasia. The study was completed with pH-metry, which found no pathological reflux; esophageal manometry, with absence of esophageal motor abnormalities; and barium swallow, which revealed a large diverticulum on the posterior wall of the lower third of the esophagus, which had food remnants but no other changes or evidence of achalasia.