Abstract: Choanal atresia is a rare malformation in newborns and infants. It could be a life threatening condition in neonates. We present a 15 year old female with history of recurrent right sided nasal discharge since birth. With Computed Tomography (CT) and CT Choanography, she was diagnosed to have unilateral (right sided) membranous choanal atresia which was treated by simple puncture transnasally with post-op stenting.