Video 5 - Mid-esophageal diverticulum.
From the following article
W.G. Paterson, Raj K. Goyal and Fortunée Irene Habib
GI Motility online (2006)
doi:10.1038/gimo20
Mid-esophageal diverticula are frequently associated with diffuse esophageal spasm or vigorous achalasia.
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