<prompt> An elderly male present with history of dysphagia, regurgitation, foul breath and cough. Bilateral lung crepitations are noted on examination. The most likely diagnosis is:Schatzkis ringZenkers diverticulumCorkscrew esophagusPlummer-Vinson syndrome  <response>: Ans. b Zenkers diverticulumRef: Sabiston 20th Edition, Pages 1020 -1022 Most common complication of Zenkers Diverticulum - Lung abscess due to aspiration Most common symptom: Dysphagia Not Halitosis 