What is the Lahey system for staging Zenker diverticulum?

Updated: Oct 16, 2020
  • Author: Joel A Ernster, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Criteria of the Lahey staging system are as follows:

  • Stage I - A small mucosal protrusion is present

  • Stage II - A definite sac is present, but the hypopharynx and esophagus are in line

  • Stage III - The hypopharynx is in line with diverticulum, and the esophagus is indented and pushed anteriorly.

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