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Zenker diverticulum

Summary of Zenker diverticulum
A Zenker's diverticulum is a diverticulum of the mucosa of the pharynx, just above the cricopharyngeal muscle (i.e. above the upper sphincter of the esophagus). It is a false diverticulum (not involving all layers of the esophageal wall). Presenting symptoms include dysphagia, obstruction, gurgling, aspiration, foul breath, and possibly a neck mass.      

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Pathology

Gastrointestinal system

Peritoneum and peritoneal cavity disorders
Upper gastrointestinal tract disorders
Lower gastrointestinal tract disorders
Liver, gallbladder and pancreas disorders