Rare diseases · Sign or symptom

Concave nasal ridge

Boxer's nasal deformity

HP:0011120

What it means

Nasal ridge curving posteriorly to an imaginary line that connects the nasal root and tip.

A saddle-nose deformity can be congenital or acquired (e.g., traumatic) and is associated with structural compromise of the nasoseptal cartilage leading to decreased dorsal nasal structural support. A depression of the dorsum of the nose with loss of nasal tip support and definition, shortened (vertical) nasal length, overrotation of the nasal tip, and retrusion of the nasal spine and caudal septum.

Rare diseases that can present with this5

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: Boxer's nose deformity · Concave dorsum of nose · Concave nasal dorsum · Saddle nose · Saddle nose deformity · Saddle shaped nasal dorsum · Ski jump nose

Concave nasal ridge

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This 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.