A newborn infant was referred with intermittent cyanosis which improved on crying but worsened when quiet. What is the most likely dignosis ?: (A) Diaphragmatic hernia, (B) Congenital hea disease (Cyanotic), (C) Choanal atresia, (D) Tracheal agencies
Answer is C. In choanal atresia cyanosis relieves when baby stas mouth breathing, that is on crying. Ref : Ghai essential of pediatrics, eighth edition, p.no:366