Radiology Fundamentals in Radiology c22bde55 Contrast material used in the diagnosis of esophageal atresia is - A Gastrograffin B Conray 420 C Dianosil D Myodii High-Yield Explanation Dianosil is the contrast agent used for Esophageal atresis, tracheo esophageal fistula and bronchoscopy.