Which of the following is investigation of choice for Zenker's diveiculum?: (A) CECT, (B) Endoscopy, (C) Esophageal manometry, (D) Barium swallow
Answer is D. When suspected, the diagnosis is established by a barium swallow.. Endoscopy is usually difficult in the presence of a cricopharyngeus diveiculum and potentially dangerous, owing to the obstruction of the true esophageal lumen by the diveiculum and the associated risk of diveicular perforation. Ref: Schwaz 9/e, Page 848.