<prompt> Most common site of rupture of esophagus during rigid esophagoscopy is atAbove cricopharynxNear vocal cordGE junctionAt killians dehiscence  <response>: Complications of Rigid esophagoscopv Injury to lips and teeth. Injury to arytenoids. Injury to pharyngeal mucosa. Perforation of esophagus; most often it occurs at the site of killians dehiscence near the cricopharyngeal sphincter. Compression of trachea. 