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1 OMIM reference -
3 associated genes
38 signs/symptoms
COMMON GENES: 1
COMMON SIGNS: 6
1 OMIM reference -
1 associated gene
42 signs/symptoms
Saethre-Chotzen syndrome
Thanatophoric dysplasia type 1

FGFR2 FGFR3
FGFR3
TWIST1


COMMON
GENES
FGFR3



Citations in the biomedical literature:


Saethre-Chotzen syndrome
FGFR2 FGFR3 TWIST1
Thanatophoric dysplasia type 1



Saethre-Chotzen syndrome
Thanatophoric dysplasia type 1

Synonym(s):
- ACS3
- Acrocephalosyndactyly type 3
- SCS

Synonym(s):
- TD1
- Thanatophoric dwarfism type 1

Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare eye disease
- Rare genetic disease
- Rare oncologic 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: normal
Type of inheritance: autosomal dominant
Epidemiological data:
Class of prevalence: unknown
Average age onset: neonatal/infancy
Average age of death: before age 5
Type of inheritance: autosomal dominant

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


COMMON
SIGNS
- Autosomal dominant inheritance
- Hearing loss / hypoacusia / deafness
- Intellectual deficit / mental / psychomotor retardation / learning disability
- Seizures / epilepsy / absences / spasms / status epilepticus
- Short hand / brachydactyly
- Short stature / dwarfism / nanism


Saethre-Chotzen syndrome
Thanatophoric dysplasia type 1

Very frequent
- Craniostenosis / craniosynostosis / sutural synostosis
- Facial structural asymmetry / facial hemiatrophy / facial hemihypertrophy
- Skull / cranial anomalies
- Syndactyly of fingers / interdigital palm

Frequent
- Beaked nose
- Dystonia / torticollis / writer's cramp / blepharospasms
- External auditory canal atresia / stenosis / agenesis
- External ear anomalies
- Helix / crux helix absent / abnormal / adherent / crux cymbae / posterior helix pits
- Hypertelorism
- Low hair line-front
- Microtia / cryptomicrotia / anotia / external auditory canal / pinnae aplasia / hypoplasia
- Ptosis
- Simian crease / transverse / unique palmar crease
- Strabismus / squint

Occasional
- Abnormal vertebral size / shape
- Apnea / sleep apnea
- Cleft palate without cleft lip / submucosal cleft palate / bifid uvula
- Conductive deafness / hearing loss
- Congenital cardiac anomaly / malformation / cardiopathy
- Cranial hypertension
- Early death / lethality
- Facial pain / cephalalgia / migraine
- Hallux valgus
- Hypoplastic maxillary bones / zygomatic bones / maxillary hypoplasia
- Low set ears / posteriorly rotated ears
- Optic nerve anomaly / optic atrophy / anomaly of the papilla
- Radioulnar synostosis
- Scoliosis
- Sensorineural deafness / hearing loss
- Undescended / ectopic testes / cryptorchidia / unfixed testes
- Visual loss / blindness / amblyopia


Very frequent
- Bowed diaphysis / diaphyses / long bones
- Depressed nasal bridge
- Dysostosis / chondrodysplasia / osteodysplasia / osteochondrosis / skeletal dysplasia
- Femur anomaly / absence / agenesis / hypoplasia / bifurcation
- Flat face
- Hypotonia
- Loose skin / skin relaxation / excess skin / creases
- Macrocephaly / macrocrania / megalocephaly / megacephaly
- Metaphyseal anomaly
- Narrow rib cage / thorax
- Pelvis anomaly / Narrow / broad iliac wings / pubis abnormality
- Platyspondyly
- Respiratory distress / dyspnea / respiratory failure / lung volume reduction
- Rhizomelic micromelia
- Sacroiliac joints anomalies
- Short limbs / micromelia / brachymelia
- Short rib cage / thorax
- Small face
- Stillbirth / neonatal death
- Trident hand / split hand / abnormal median ray

Frequent
- Dilated cerebral ventricles without hydrocephaly
- Frontal bossing / prominent forehead
- Hypoplastic lungs / pulmonary hypoplasia / agenesis
- Increased nuchal translucency
- Kyphosis
- Polyhydramnios
- Proptosis / exophthalmos
- Rippled skin

Occasional
- Acanthosis nigricans
- Agyria / micro / pachy / macrogyria / lissencephaly / gyration / neuronal migration defect
- Atrial septal defect / interauricular communication
- Cloverleaf skull
- Hydrocephaly
- Patent ductus arteriosus
- Renal / kidney anomalies
- Restricted joint mobility / joint stiffness / ankylosis