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Severe achondroplasia - developmental delay - acanthosis nigricans
1 OMIM reference -
1 associated gene
41 connected diseases
7 signs/symptoms
Disease Type of connection
Achondroplasia
Camptodactyly - tall stature - scoliosis - hearing loss
Crouzon syndrome - acanthosis nigricans
Cutis gyrata - acanthosis nigricans - craniosynostosis
Giant cell glioblastoma
Gliosarcoma
Hypochondroplasia
Isolated brachycephaly
Isolated cloverleaf skull syndrome
Isolated plagiocephaly
Lacrimo-auriculo-dento-digital syndrome
Muenke syndrome
Saethre-Chotzen syndrome
Thanatophoric dysplasia type 1
Thanatophoric dysplasia type 2
Kallmann syndrome
Normosmic congenital hypogonadotropic hypogonadism
Multiple synostoses syndrome
Distal 16p11.2 microdeletion syndrome
Proximal 16p11.2 microdeletion syndrome
Severe early-onset obesity-insulin resistance syndrome due to SH2B1 deficiency
Alobar holoprosencephaly
Lobar holoprosencephaly
Microform holoprosencephaly
Midline interhemispheric variant of holoprosencephaly
Semilobar holoprosencephaly
Septopreoptic holoprosencephaly
Autosomal dominant hyper-IgE syndrome
Chronic mucocutaneous candidiasis
Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency
Susceptibility to viral and mycobacterial infections
Isolated NADH-CoQ reductase deficiency
Monomelic amyotrophy
Pycnodysostosis
Autosomal dominant hypophosphatemic rickets
Deafness with labyrinthine aplasia, microtia, and microdontia
Hypercalcemic tumoral calcinosis
Oculootodental syndrome
Otodental syndrome
Diffuse cutaneous systemic sclerosis
Limited cutaneous systemic sclerosis
Synonym(s):
- SADDAN
Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare genetic disease
- Rare skin disease
Classification (ICD10):
- Congenital malformations, deformations and chromosomal abnormalities -
Epidemiological data:
Class of prevalence: <1 / 1 000 000
Average age onset: childhood
Average age of death: no data available
Type of inheritance: autosomal dominant
External references:
1 OMIM reference -
No MeSH references
Gene symbol UniProt reference OMIM reference
FGFR3 P22607134934
Very frequent
- Anomalies of bones / skeletal anomalies
- Intellectual deficit / mental / psychomotor retardation / learning disability
- Seizures / epilepsy / absences / spasms / status epilepticus

Frequent
- Clavicle absent / abnormal
- Femur anomaly / absence / agenesis / hypoplasia / bifurcation
- Fibula anomaly (excluding short) / absence / agenesis / hypoplasia / fibular ray anomaly
- Tibia anomaly (excluding short) / absence / agenesis / hypoplasia / tibial ray anomaly