Investigation of choice for Zenker's diverticulum is:: (A) CECT, (B) Endoscopy, (C) Esophageal manometry, (D) Barium Swallow
Answer is D. "Once suspected, the diagnosis is established by a barium swallow. Endoscopy is usually difficult in the presence of a cricopharyngeal diverticulum; and potentially dangerous, owing to obstruction of the true esophageal lumen by the diverticulum and the attendant risk of diverticular perforation."- Schwartz