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1 OMIM reference -
1 associated gene
11 signs/symptoms
COMMON GENES: 1
COMMON SIGNS: 8
1 OMIM reference -
1 associated gene
38 signs/symptoms
Spondylometaphyseal dysplasia, Schmidt type
Kniest dysplasia

COL2A1 COL2A1


COMMON
GENES
COL2A1



Citations in the biomedical literature:


Spondylometaphyseal dysplasia, Schmidt type
COL2A1
Kniest dysplasia



Spondylometaphyseal dysplasia, Schmidt type
Kniest dysplasia

Synonym(s):
- Spondylometaphyseal dysplasia with severe genu valgum
- Spondylometaphyseal dysplasia, Algerian type

Synonym(s):
(no synonyms)

Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare genetic disease
Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare genetic disease
- Rare maxillo-facial surgical disease
- Rare otorhinolaryngologic disease

Classification (ICD10):
- Congenital malformations, deformations and chromosomal abnormalities -
Classification (ICD10):
- Congenital malformations, deformations and chromosomal abnormalities -

Epidemiological data:
Class of prevalence: <1 / 1 000 000
Average age onset: -
Average age of death: -
Type of inheritance: autosomal dominant
Epidemiological data:
Class of prevalence: unknown
Average age onset: neonatal/infancy
Average age of death: normal
Type of inheritance: autosomal dominant

External references:
1 OMIM reference -
No MeSH references
External references:
1 OMIM reference -
1 MeSH reference: C537207


COMMON
SIGNS
- Autosomal dominant inheritance
- Joint / articular deformation
- Kyphosis
- Metaphyseal anomaly
- Myopia
- Pelvis anomaly / Narrow / broad iliac wings / pubis abnormality
- Scoliosis
- Short stature / dwarfism / nanism


Spondylometaphyseal dysplasia, Schmidt type
Kniest dysplasia

Very frequent
- Genu valgum
- Short limbs / micromelia / brachymelia

Frequent
- Abnormal vertebral size / shape



Very frequent
- Depressed nasal bridge
- Dysostosis / chondrodysplasia / osteodysplasia / osteochondrosis / skeletal dysplasia
- Epiphyseal anomaly
- Femur anomaly / absence / agenesis / hypoplasia / bifurcation
- Lordosis
- Mesomelic micromelia
- Mid-facial hypoplasia / short / small midface
- Osteoarthritis
- Platyspondyly
- Restricted joint mobility / joint stiffness / ankylosis
- Retinopathy
- Rhizomelic micromelia
- Short rib cage / thorax
- Vitreous anomalies / hyalitis / persistent vitreous vascularisation
- Wide rib cage / thorax

Frequent
- Cleft palate without cleft lip / submucosal cleft palate / bifid uvula
- Hearing loss / hypoacusia / deafness
- Hip dislocation / dysplasia / coxa valga / coxa vara / coxa plana
- Proptosis / exophthalmos
- Retinal detachment
- Round face

Occasional
- Cataract / lens opacification
- Glaucoma
- Glossoptosis
- Lens dislocation / luxation / subluxation / ectopia lentis
- Micrognathia / retrognathia / micrognathism / retrognathism
- Ptosis
- Respiratory distress / dyspnea / respiratory failure / lung volume reduction
- Tracheal atresia / stenosis
- Tracheomalacia / tracheobronchomalacia