choanal atresia
MONDO:0012155Mondo
Findings
No curated finding names choanal atresia yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Choanal atresia (CA) is a congenital anomaly of the posterior nasal airway characterized by the obstruction of one (unilateral) or both (bilateral) choanal aperture(s), with clinical manifestations ranging from acute respiratory distress to chronic nasal obstruction.
Definition from the Mondo Disease Ontology (MONDO:0012155), read 2026-09-29. CC BY 4.0.
Features
16 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Abnormal nasal mucus secretionHPOHP:0031416
- Frequent (30% to 79% of cases)
- Chronic sinusitisHPOHP:0011109
- Frequent (30% to 79% of cases)
- Nasal congestionHPOHP:0001742
- Frequent (30% to 79% of cases)
- Choking episodesHPOHP:0030842
- Occasional (5% to 29% of cases)
- CraniosynostosisHPOHP:0001363
- Occasional (5% to 29% of cases)
- CyanosisHPOHP:0000961
- Occasional (5% to 29% of cases)
- Feeding difficultiesHPOHP:0011968
- Occasional (5% to 29% of cases)
- Inappropriate cryingHPOHP:0030215
- Occasional (5% to 29% of cases)
- LaryngomalaciaHPOHP:0001601
- Occasional (5% to 29% of cases)
- Mandibulofacial dysostosisHPOHP:0005321
- Occasional (5% to 29% of cases)
- Recurrent respiratory infectionsHPOHP:0002205
- Occasional (5% to 29% of cases)
- Respiratory distressHPOHP:0002098
- Occasional (5% to 29% of cases)
Show the remaining 4
- Subglottic stenosisHPOHP:0001607
- Occasional (5% to 29% of cases)
- TracheomalaciaHPOHP:0002779
- Occasional (5% to 29% of cases)
- Upper airway obstructionHPOHP:0002781
- Occasional (5% to 29% of cases)
- PolydactylyHPOHP:0010442
- Very rare (1% to 4% of cases)
Where it sits
- Narrower terms (2)
Other names
1 name
Resolves to: choanal atresia
- Also called
- atresia of nares