choanal atresia, unilateral
MONDO:0015312Mondo
Findings
No curated finding names choanal atresia, unilateral yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Unilateral choanal atresia is a, usually sporadic, congenital anomaly that is more commonly seen in females than in males (2:1), where the nose is blocked by bony or soft tissue formed during embryologic development on only one side (more commonly on the right side) and which is characterized by nasal obstruction and rhinorrhea, usually presenting at birth but that may go undetected until a respiratory infection aggravates the condition.
Definition from the Mondo Disease Ontology (MONDO:0015312), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of