Pharyngoesophageal (Zenker's) diverticulum.
D003413:Cricoid Cartilage / Q000601:surgery; D004936:Diverticulum, Esophageal / Q000175:diagnosis* / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D010608:Pharyngeal Diseases / Q000175:diagnosis* / Q000601:surgery; D011182:Postoperative Care; D013997:Time Factors