Congenital nasal pyriform aperture stenosis with single central megaincisor

A 15-day-old female newborn presenting nasal obstruction since birth underwent computed tomography of the paranasal sinuses in our department due to clinical suspicion of choanal atresia. The patient presented no other complaints. Computed tomography () allowed the diagnosis of pyriform aperture stenosis, which is a rare cause of nasal obstruction in neonates and was first described in 1989.() Pyriform aperture stenosis becomes particularly significant during the first two months of life when infants are mandatory nose breathers. […] Congenital nasal [...]