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1 OMIM reference -
1 associated gene
41 signs/symptoms
COMMON GENES: 1
COMMON SIGNS: 15
1 OMIM reference -
1 associated gene
21 signs/symptoms
Achondroplasia
Hypochondroplasia

FGFR3 FGFR3


COMMON
GENES
FGFR3



Citations in the biomedical literature:


Achondroplasia
FGFR3
Hypochondroplasia



Achondroplasia
Hypochondroplasia

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

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

Epidemiological data:
Class of prevalence: 1-9 / 100 000
Average age onset: neonatal/infancy
Average age of death: elderly
Type of inheritance: autosomal dominant
Epidemiological data:
Class of prevalence: 1-9 / 100 000
Average age onset: childhood
Average age of death: normal
Type of inheritance: autosomal dominant

External references:
1 OMIM reference -
1 MeSH reference: D000130
External references:
1 OMIM reference -
No MeSH references


COMMON
SIGNS
- Abnormal vertebral size / shape
- Apnea / sleep apnea
- Autosomal dominant inheritance
- Bowed diaphysis / diaphyses / long bones
- Dysostosis / chondrodysplasia / osteodysplasia / osteochondrosis / skeletal dysplasia
- Elbow anomalies(excluding luxation)
- Genu varum
- Hyperextensible joints / articular hyperlaxity
- Lordosis
- Macrocephaly / macrocrania / megalocephaly / megacephaly
- Metaphyseal anomaly
- Pelvis anomaly / Narrow / broad iliac wings / pubis abnormality
- Rachidian / spine canal stenosis
- Short hand / brachydactyly
- Short stature / dwarfism / nanism


Achondroplasia
Hypochondroplasia

Very frequent
- Anomalies of the ribs
- Anteverted nares / nostrils
- Chronic / relapsing otitis
- Depressed nasal bridge
- Frontal bossing / prominent forehead
- Rhizomelic micromelia

Frequent
- Abnormal dentition / dental position / implantation / unerupted / dental ankylosis
- Conductive deafness / hearing loss
- Dilated cerebral ventricles without hydrocephaly
- Enlarged diaphysis / diaphyses
- Generalized obesity
- Hyperhidrosis / increased sweating
- Hypotonia
- Intrauterine growth retardation
- Kyphosis
- Long rib cage / thorax
- Mid-facial hypoplasia / short / small midface
- Narrow rib cage / thorax

Occasional
- Acanthosis nigricans
- Collapse / sudden death / cardiac arrest / cardiorespiratory arrest
- Death in infancy
- Elbow dislocation
- Elocution disorders / dysarthria / dysphonia
- Hydrocephaly
- Restricted joint mobility / joint stiffness / ankylosis
- Speech troubles / aphasia / dysphasia / echolalia / mutism / logorrhea / dysprosodia


Very frequent
- Short foot / brachydactyly of toes
- Short limbs / micromelia / brachymelia

Frequent
- Femur anomaly / absence / agenesis / hypoplasia / bifurcation

Occasional
- Intellectual deficit / mental / psychomotor retardation / learning disability
- Osteoarthritis
- Scoliosis