Rare diseases · Sign or symptom
Convex nasal ridge
Beaked nose
HP:0000444
What it means
Nasal ridge curving anteriorly to an imaginary line that connects the nasal root and tip. The nose appears often also prominent, and the columella low.
Rare diseases that can present with this65
Very common80–99%
28- Alar cartilages hypoplasia-coloboma-telecanthus syndrome
- Anonychia with flexural pigmentation
- Aortic arch anomaly-facial dysmorphism-intellectual disability syndrome
- Atypical Werner syndrome
- Bangstad syndrome
- Brachydactyly-mesomelia-intellectual disability-heart defects syndrome
- Cartilage-hair hypoplasia
- Cernunnos-XLF deficiency
- Distal deletion 10p syndrome
- Dysmorphism-pectus carinatum-joint laxity syndrome
- Hallermann-Streiff syndrome
- Hypogonadotropic hypogonadism-severe microcephaly-sensorineural hearing loss-dysmorphism syndrome
- Infantile spasms-broad thumbs syndrome
- Lipodystrophy due to peptidic growth factors deficiency
- Microcephalic osteodysplastic dysplasia, Saul-Wilson type
- Microcephalic primordial dwarfism, Montreal type
- Microcephaly-cervical spine fusion anomalies syndrome
- Nijmegen breakage syndrome
- Osteogenesis imperfecta
- Pseudoprogeria syndrome
- Radio-renal syndrome
- Rubinstein-Taybi syndrome
- Ruvalcaba syndrome
- Sanjad-Sakati syndrome
- Seckel syndrome
- Tetraploidy syndrome
- Werner syndrome
- Wiedemann-Rautenstrauch syndrome
Common30–79%
24- Acrogeria
- Aicardi-Goutières syndrome
- Apert syndrome
- Beta-mercaptolactate cysteine disulfiduria
- BRESEK syndrome
- Craniosynostosis, Herrmann-Opitz type
- Hypospadias-intellectual disability, Goldblatt type syndrome
- Jackson-Weiss syndrome
- LIG4 syndrome
- Lowry-MacLean syndrome
- Mandibuloacral dysplasia with type B lipodystrophy
- Mowat-Wilson syndrome due to a ZEB2 point mutation
- Mowat-Wilson syndrome due to monosomy 2q22
- Non-distal duplication 10q syndrome
- Pycnodysostosis
- Rubinstein-Taybi syndrome due to 16p13.3 microdeletion
- Rubinstein-Taybi syndrome due to CREBBP mutations
- Rubinstein-Taybi syndrome due to EP300 haploinsufficiency
- Saethre-Chotzen syndrome
- Say-Barber-Miller syndrome
- Temtamy syndrome
- Tetrasomy 9p syndrome
- Trigonocephaly-short stature-developmental delay syndrome
- Ulbright-Hodes syndrome
Sometimes5–29%
13- 2q32q33deletion syndrome
- ALG9-CDG
- Cenani-Lenz syndrome
- Cleft palate-congenital heart defect-intellectual disability syndrome due to 15q14 microdeletion
- Cockayne syndrome
- Craniofacial dysostosis-diaphyseal hyperplasia syndrome
- Crouzon syndrome
- Crouzon syndrome-acanthosis nigricans syndrome
and 5 more in this range
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: Beaklike protrusion · Convex dorsum of nose · Convex nasal dorsum · Hooked nose · Polly beak nasal deformity
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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.