raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:87

Apert syndrome

Synonyms: ACS1 · Acrocephalosyndactyly type 1

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Antenatal, Neonatal
Status
active

A frequent form of acrocephalosyndactyly, a group of inherited congenital malformation disorders, characterized by craniosynostosis, midface hypoplasia, and finger and toe anomalies and/or syndactyly.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enApert syndromeACS1 · Acrocephalosyndactyly type 1
frSyndrome d'ApertACS1 · Acro-céphalo-syndactylie type 1
deApert-SyndromACPS I · Akrozephalosyndaktylie Typ 1
esSíndrome de ApertACS1 · Acrocefalosindactilia tipo 1
itSindrome di ApertACS 1 · Acrocefalosindattilia, tipo 1
nlSyndroom van ApertACS 1 · Acrocefalosyndactylie type 1
ptSíndrome ApertACS 1 · Acrocefalossindactilia tipo 1
plZespół ApertaACS 1 · Akrocefalosyndaktylia typu 1
csApertův syndromACS1 · Akrocefalosyndaktylie, typ 1
ukСиндром АпертаАкроцефалосиндактилія типу 1 · ACS1
zhApert综合征尖头并指畸形1型
trApert sendromuACS1 · Akrosefalosindaktili tip 1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM101200Evalidated
ICD-10Q87.0NTBTinclusionvalidated
ICD-11LD24.G2Especificvalidated
MONDO0007041Evalidated
UMLSC0001193Evalidated
GARD5833Evalidated
MedDRA10002943Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (6):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
FGFR2Disease-causing germline mutation(s) (gain of function) inAssessedHGNC:3689ENSG0000006646817694310q26.13fibroblast growth factor receptor 220301628[PMID]_23593218[PMID]_15282208[PMID]
5

Prevalence and incidence

10 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—EuropeClass onlyValidatedORPHANET
Prevalence at birth1-9 / 100 000—WorldwideClass onlyValidatedORPHANET
Point prevalence1-9 / 100 000—WorldwideClass onlyNot yet validatedORPHANET
Prevalence at birth1-9 / 100 0001.1 / 100 000SpainValue and classValidated10666902[PMID]
Point prevalence1-9 / 100 0001.1 / 100 000SpainValue and classValidated10666902[PMID]
Prevalence at birth1-9 / 100 0001.2 / 100 000United StatesValue and classValidated9375719[PMID]
Point prevalence1-9 / 100 0001.2 / 100 000United StatesValue and classValidated9375719[PMID]
Prevalence at birth1-9 / 100 0001.47 / 100 000CanadaValue and classValidated1303629[PMID]_1602157[PMID]
Point prevalence1-9 / 100 0001.47 / 100 000CanadaValue and classValidated1303629[PMID]_1602157[PMID]
Prevalence at birth1-9 / 100 0001.6 / 100 000AustraliaValue and classValidated34626670[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

59 annotations · validated 2024-04-23
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0004487Acrobrachycephaly
HP:0000244Brachyturricephaly
HP:0000337Broad forehead
HP:0000405Conductive hearing impairment
HP:0004440Coronal craniosynostosis
HP:0001363Craniosynostosis
HP:0005280Depressed nasal bridge
HP:0006101Finger syndactyly
HP:0012368Flat face
HP:0002007Frontal bossing
HP:0000327Hypoplasia of the maxilla
HP:0000520Proptosis
HP:0001770Toe syndactyly
Frequent (79-30%)
HP:0001331Absent septum pellucidum
HP:0001274Agenesis of corpus callosum
HP:0009601Aplasia/Hypoplasia of the thumb
HP:0011304Broad thumb
HP:0004635Cervical vertebrae fusion (C5/C6)
HP:0000444Convex nasal ridge
HP:0000684Delayed eruption of teeth
HP:0000678Dental crowding
HP:0000689Dental malocclusion
HP:0000494Downslanted palpebral fissures
HP:0000324Facial asymmetry
HP:0008872Feeding difficulties in infancy
HP:0000975Hyperhidrosis
HP:0000316Hypertelorism
HP:0000822Hypertension
HP:0001249Intellectual disability
HP:0000239Large fontanelles
HP:0000303Mandibular prognathia
HP:0011800Midface retrusion
HP:0011380Morphological abnormality of the semicircular canal
HP:0000189Narrow palate
HP:0000586Shallow orbits
HP:0000486Strabismus
HP:0003422Vertebral segmentation defect
Occasional (29-5%)
HP:0030680Abnormal cardiovascular system morphology
HP:0000119Abnormality of the genitourinary system
HP:0006536Airway obstruction
HP:0012803Anisometropia
HP:0100702Arachnoid cyst
HP:0000193Bifid uvula
HP:0002308Chiari malformation
HP:0000453Choanal atresia
HP:0000175Cleft palate
HP:0002676Cloverleaf skull
HP:0200020Corneal erosion
HP:0004397Ectopic anus
HP:0002032Esophageal atresia
HP:0000238Hydrocephalus
HP:0002983Micromelia
HP:0008404Nail dystrophy
HP:0000648Optic atrophy
HP:0000388Otitis media
HP:0002093Respiratory insufficiency
HP:0000407Sensorineural hearing impairment
HP:0002119Ventriculomegaly
HP:0000505Visual impairment

Run the differential on the 12 obligate / very frequent terms

Annotation source: 30085535[PMID]_31145570[PMID]

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Sources for this card