Rare diseases · Sign or symptom
Hypoplasia of the anterior nasal spine
HP:0010666
What it means
Underdevelopment of the anterior nasal spine of maxilla.
Rare diseases that can present with this1
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Decreased length of anterior nasal spine · Decreased projection of anterior nasal spine · Decreased size of anterior nasal spine · Deficiency of anterior nasal spine · Hypotrophic anterior nasal spine · Small anterior nasal spine · Underdevelopment of anterior nasal spine
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.