<prompt> Dohlmans operation done for:AchalasiaRectal prolapseCa esophagusZenkers diverticulum  <response>: Ans. d Zenkers diverticulumRef Shackelford 7th Edition, Page 345 Surgical Management of Choice is - Cricopharyngeal Myotomy with Diverticulectomy If given in choices is the best option Dohlmans operation - Endoscopic stapling technique preferred for Diverticulum more than 3cm Size. 