supernumerary nostril
Findings
No curated finding names supernumerary nostril yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Supernumerary nostril is an extremely rare congenital malformation characterized by the presence of one or more accessory nostrils, with or without accessory cartilage, located medially, above, below or laterally to the other nostrils. Unlike in polyrhinia there is no duplication of the nasal septum/cavity. Supernumerary nostril is often associated with other congenital malformations usually of face.
Definition from the Mondo Disease Ontology (MONDO:0015389), read 2026-09-29. CC BY 4.0.
Features
7 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.
- Supernumerary narisHPOHP:0009934
- Obligate (100% of cases)
- Abnormality of the faceHPOHP:0000271
- Frequent (30% to 79% of cases)
- Tessier cleftHPOHP:0002006
- Occasional (5% to 29% of cases)
- Abnormality of ethmoid sinusHPOHP:3000040
- Very rare (1% to 4% of cases)
- Choanal atresiaHPOHP:0000453
- Very rare (1% to 4% of cases)
- Developmental cataractHPOHP:0000519
- Very rare (1% to 4% of cases)
- MicrocorneaHPO
Where it sits
- A kind of
Other names
2 names
Resolves to: supernumerary nostril
- Also called
- accessory nostrilsupernumerary naris