It has some old food trapped in it In 1877, Friedrich Albert von Zenker, professor of pathology at Erlangen University in Germany, described the pulsion diverticulum that bears his name. His series included 5 personal cases and 22 cases collected from the literature. In the beginning of the 20th century, Killian identified the origin of the diverticulum between the cricopharyngeus muscle and the inferior pharyngeal constrictor muscles. Wheeler first successfully resected this pharyngoesophageal diverticulum in 1886.
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