Abstract

Choanal atresia is a development anomaly for posterior nasal opening that is not observed frequently. Rarely continue their life without being diagnosed for many years. In this article, we report a 56-year-old female patient who applied to the Otorhinolaryngology Clinic with complaints of single-sided nasal obstruction and nasal asphyxiation and was detected to have osseo-membranous-type unilateral choanal atresia. We operated on the patient with endoscopic transnasal surgical approach. No complications occurred after surgery. In this case report, we discussed the diagnosis and treatment principles of choanal atresia diagnosed in elder ages in light of the literature.