[Therapy of Zenker's diverticula].

The etiology and symptoms of Zenker's hypopharynx diverticulum are reviewed. The significance of stenosis formation by the pars fundiformis segment of the crico-pharyngeal muscle is emphasized. Careful preparation and dissection, followed by splitting of the constricting musculature, is the precondition for successful surgery. It can be demonstrated that invagination (closed operation) is usually sufficient, while keeping resection for large diverticula invading the mediastinum. Complications are rare and operative risks are minimal, even in the elderly. A report is presented on 40 cases in which surgery was performed.