<prompt> On barium swallow the grade IV esophageal varices appear as:Mucosal folds above the carinaMucosal folds below the carinaMucosal folds at the carinaA thick band  <response>: Ans. b Mucosal fold below carinaBarium features of Esophageal Varices: Serpiginous Worm like filling defects in esophagus Varices seen in Barium Swallow below the carina levelThe best investigation to diagnose Esophageal Varices- UGI Endoscopy 