<prompt> The most common site of rupture of the esophagus during rigid esophagoscopy is atAbove cricopharynxNear vocal cordsGastroesophageal junctionAt killians dehiscence  <response>: Complications of Rigid esophagoscopyInjury to lips and teethInjury to arytenoidsInjury to pharyngeal mucosaPerforation of the esophagus; most often it occurs at the site of killian;s dehiscence near the cricopharyngeal sphincterCompression of tracheaRef: PL Dhingra, Diseases of Ear, Nose Throat, 7th edition, pg no. 486 - 487 