Carbimazole embryopathy‐bilateral choanal atresia and patent vitello‐intestinal duct: A case report and review of literature

Abstract

In utero exposure to carbimazole for maternal hyperthyroidism has been reported to cause choanal atresia. There are case reports of patent vitello-intestinal duct and Meckel's diverticulum in similar association. We report another such instance of an infant who was exposed to carbimazole in utero, presenting with bilateral choanal atresia and patent vitello-intestinal duct. As there seems to be no reports of a possible association between propylthiouracil and congenital malformations, it may be safer to use propylthiouracil instead of carbimazole.