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1 OMIM reference -
2 associated genes
10 signs/symptoms
COMMON GENES: 1
1 OMIM reference -
4 associated genes
8 signs/symptoms
Syndactyly type 4
Schizencephaly

LMBR1 COL4A1
SHH EMX2
SHH
SIX3


COMMON
GENES
SHH



Citations in the biomedical literature:


Syndactyly type 4
LMBR1 SHH
Schizencephaly
COL4A1 EMX2 SIX3



Syndactyly type 4
Schizencephaly

Synonym(s):
- Polysyndactyly, Haas type

Synonym(s):
(no synonyms)

Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare genetic disease
Classification (Orphanet):
- Rare developmental defect during embryogenesis
- Rare genetic disease
- Rare neurologic 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: neonatal/infancy
Average age of death: -
Type of inheritance: autosomal dominant
Epidemiological data:
Class of prevalence: 1-9 / 100 000
Average age onset: neonatal/infancy
Average age of death: -
Type of inheritance: autosomal dominant

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

Syndactyly type 4
Schizencephaly

Very frequent
- Autosomal dominant inheritance
- Complete claw hand / camptodactyly of all fingers
- Syndactyly of fingers / interdigital palm
- Upper limb polydactyly / hexadactyly

Frequent
- Metacarpal anomalies / Archibald's sign
- Polydactyly of toes
- Syndactyly of toes
- Tibia anomaly (excluding short) / absence / agenesis / hypoplasia / tibial ray anomaly

Occasional
- Fingerlike / triphalangeal thumb
- Restricted joint mobility / joint stiffness / ankylosis


Very frequent
- Corpus callosum / septum pellucidum total / partial agenesis
- EEG anomalies
- Hypertonia / spasticity / rigidity / stiffness
- Porencephaly
- Strabismus / squint

Frequent
- Hemiplegia / diplegia / hemiparesia / limb palsy
- Intellectual deficit / mental / psychomotor retardation / learning disability
- Seizures / epilepsy / absences / spasms / status epilepticus