Paranasal Sinus Development and Choanal Atresia

Abstract
OBSTRUCTION of sinonasal drainage and ventilation is a well-accepted contributor to paranasal sinusitis.1-11 Such a situation exists in children with choanal atresia. In 1927, Grove12 reported a case of unilateral choanal atresia, about the 180th at the time, and noted that: