Rare diseases · Sign or symptom
Abnormal nasal base norphology
Abnormal nasal base
HP:0012808
What it means
An anomaly of the nasal base, which can be conceived of as an imaginary line between the most lateral points of the external inferior attachments of the alae nasi to the face.
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: Abnormality of base of nose · Anomaly of base of nose · Anomaly of nasal base · Deformity of base of nose · Deformity of nasal base · Malformation of base of nose · Malformation of nasal base
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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.