Novel maxillary enlargement technique in congenital nasal pyriform aperture stenosis: a case report and literature review.

Congenital nasal pyriform aperture stenosis (CNPAS) is a rare cause of neonate nasal obstruction. Because newborns are natural nasal breathers, urgent treatment may be needed. CNPAS is diagnosed by clinical symptoms and signs, and CT. In severe cases, surgical approach is needed. The most often used approach is widening of pyriform aperture via sublabial incision with nasal tubing. We report a novel surgical approach as a curative treatment for CNPAS by immediate transverse enlargement of the maxilla. We also review current literature of the condition focusing on surgical management of the disease.