[Release of the constrictor pharyngis inferior muscle with the Stark dilator before incising the esophageal sphincter in Zenker's diverticulum].
D004936:Diverticulum, Esophageal; D004947:Esophagus; D006801:Humans; D008866:Microsurgery; D010609:Pharyngeal Muscles; D010614:Pharynx; D016672:Zenker Diverticulum
ESOPHAGEAL DIVERTICULA; PHARYNX