Zenker’s diverticulum (ZD)

An outpouching or in effect a hernia of the swallowing passage just above a non-relaxing [intlink id=”113″ type=”post”]cricopharyngeus muscle[/intlink] or [intlink id=”615″ type=”post”]upper esophageal sphincter [/intlink](UES). In essence, the forces of swallowing are delivered against a somewhat unyielding muscle, and this causes the wall of the swallowing passage just above the UES to balloon outward. Though unknown to many, the ZD is only the reflection of the main problem, which is [intlink id=”111″ type=”post”]cricopharyngeus dysfunction[/intlink]. Myotomy of the [intlink id=”113″ type=”post”]cricopharyngeus muscle[/intlink] tends to resolve symptoms, even though the ZD is left in place and not removed.

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