Pathogenesis and methods of treatment of Zenker's diverticulum

In the literature, various theories concerning the cause of Zenker's diverticulum have been propounded. I believe that an anatomic predisposition plays a prominent role in the pathogenesis. This conclusion will be discussed in light of a study of the literature and characteristics of a series of 646 patients with Zenker's diverticulum. The current methods of treatment by an external surgical approach, as well as the (micro)endoscopic procedures, are described.