Rare diseases · Sign or symptom
Cubitus valgus
Outward turned elbows
HP:0002967
What it means
Abnormal positioning in which the elbows are turned out.
Rare diseases that can present with this35
Very common80–99%
12- 49,XYYYY syndrome
- CHST3-related skeletal dysplasia
- Maternal uniparental disomy of chromosome X syndrome
- Monosomy X syndrome
- Mosaic monosomy X syndrome
- Paternal uniparental disomy of chromosome X syndrome
- SHOX-related short stature
- Spinocerebellar ataxia-dysmorphism syndrome
- Turner syndrome
- Turner syndrome due to structural X chromosome anomalies
- W syndrome
- X-linked intellectual disability-cubitus valgus-dysmorphism syndrome
Common30–79%
10- 17q24.2microdeletion syndrome
- Ataxia-photosensitivity-short stature syndrome
- Camptodactyly syndrome, Guadalajara type 1
- Cohen syndrome
- Congenital muscular dystrophy-infantile cataract-hypogonadism syndrome
- Eiken syndrome
- Facial dysmorphism-shawl scrotum-joint laxity syndrome
- Leri pleonosteosis
- Progressive spondyloepimetaphyseal dysplasia-short stature-short fourth metatarsals-intellectual disability syndrome
- Spondyloepiphyseal dysplasia-brachydactyly-speech disorder syndrome
Sometimes5–29%
11- 45,X/46,XY mixed gonadal dysgenesis
- Cardiofaciocutaneous syndrome
- Congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency
- Cortical dysgenesis with pontocerebellar hypoplasia due to TUBB3 mutation
- Ellis-Van Creveld syndrome
- Mesomelic dysplasia, Kantaputra type
- Müllerian aplasia and hyperandrogenism
- Nail-patella syndrome
and 3 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
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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.