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2 associated genes
20 signs/symptoms
COMMON GENES: 1
COMMON SIGNS: 3
1 OMIM reference -
1 associated gene
21 signs/symptoms
Pfeiffer syndrome type 1
Hartsfield-Bixler-Demyer syndrome

FGFR1 FGFR1
FGFR2


COMMON
GENES
FGFR1



Citations in the biomedical literature:


Pfeiffer syndrome type 1
FGFR1 FGFR2
Hartsfield-Bixler-Demyer syndrome



Pfeiffer syndrome type 1
Hartsfield-Bixler-Demyer syndrome

Synonym(s):
- Classic Pfeiffer syndrome

Synonym(s):
- Holoprosencephaly - ectrodactyly - cleft lip palate

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

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


COMMON
SIGNS
- Depressed nasal bridge
- Hypertelorism
- Low set ears / posteriorly rotated ears


Pfeiffer syndrome type 1
Hartsfield-Bixler-Demyer syndrome

Very frequent
- Autosomal dominant inheritance
- Brachycephaly / flat occiput
- Broad / bifid big toe
- Broad / bifid thumb
- High forehead
- High vaulted / narrow palate
- Mid-facial hypoplasia / short / small midface
- Short big toe
- Short / small nose
- Thumb hypoplasia / aplasia / absence

Frequent
- Proptosis / exophthalmos
- Short foot / brachydactyly of toes
- Short hand / brachydactyly
- Syndactyly of fingers / interdigital palm
- Syndactyly of toes

Occasional
- Hearing loss / hypoacusia / deafness
- Stenosis of aqueduc of Sylvius


Very frequent
- Anophthalmos / anophthalmia / microphthalmos / microphthalmia
- Anosmia / cacosmia / hypogeusia / hyposmia / olfactory bulb hypoplasia
- Cleft palate without cleft lip / submucosal cleft palate / bifid uvula
- Corpus callosum / septum pellucidum total / partial agenesis
- Craniostenosis / craniosynostosis / sutural synostosis
- Downslanted palpebral fissures / anti-mongoloid slanting palpebral fissures
- Encephalocele / exencephaly
- Holoprosencephaly / arhinencephaly / unique lateral ventricle
- Intrauterine growth retardation
- Lateral cleft lip / gingival cleft / paramedian nasal cleft
- Oligodactyly / ectrodactyly of fingers
- Ptosis
- Respiratory distress / dyspnea / respiratory failure / lung volume reduction
- Single nare / abouphalia
- Stillbirth / neonatal death
- Telecanthus / canthal dystopy

Frequent
- Radius anomaly / absence / agenesis / hypoplasia / abnormal radial ray
- Trident hand / split hand / abnormal median ray