raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:684216

Intellectual disability-facial dysmorphism-joint hypermobility-hearing loss syndrome

Synonyms: BEFAHRS · Beck-Fahrner syndrome · Intellectual disability-facial dysmorphism-joint hypermobility-deafness syndrome · TET3 deficiency · TET3-related Beck-Fahrner syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enIntellectual disability-facial dysmorphism-joint hypermobility-hearing loss syndromeBEFAHRS · Beck-Fahrner syndrome · Intellectual disability-facial dysmorphism-joint hypermobility-deafness syndrome · TET3 deficiency · TET3-related Beck-Fahrner syndrome
frSyndrome de déficience intellectuelle-dysmorphie faciale-hypermobilité articulaire-surditéBEFAHRS · Syndrome de Beck-Fahrner
deIntelligenzminderung-Gesichtsdysmorphien-Gelenkhypermobilität-Hörverlust-SyndromBEFAHRS · Beck-Fahrner-Syndrom · TET3-Defizienz
esSíndrome de discapacidad intelectual-dismorfia facial-hipermovilidad articular-hipoacusiaBEFAHRS · Deficiencia de TET3 · Síndrome de Beck-Fahrner · Síndrome de Beck-Fahrner asociado a TET3 · Síndrome de discapacidad intelectual-dismorfia facial-hipermovilidad articular-sordera
itSindrome disabilità intellettiva-dismorfismi facciali-ipermobilità articolare-sorditàBEFAHRS · Sindrome di Beck-Fahrner · Sindrome disabilità intellettiva-dismorfismi facciali-ipermobilità articolare-perdita dell’udito · Deficit di TET3 · Sindrome di Beck-Fahrner correlata a TET3
nlIntellectuele achterstand - faciale dysmorfie - gewrichtshypermobiliteit - gehoorverlies-syndroomBEFAHRS · Intellectuele achterstand - faciale dysmorfie - gewrichtshypermobiliteit - doofheid-syndroom · Syndroom van Beck-Fahrner · TET3-deficiëntie · TET3-gerelateerd syndroom van Beck-Fahrner
ptSíndrome de perturbação do desenvolvimento intelectual-dismorfia facial-hipermobilidade articular-perda auditivaBEFAHRS · Deficiência TET3 · Síndrome Beck-Fahrner · Síndrome Beck-Fahrner TET3-relacionada · Síndrome de perturbação do desenvolvimento intelectual-dismorfia facial-hipermobilidade articular-surdez
plIntellectual disability-facial dysmorphism-joint hypermobility-hearing loss syndrome= en
csSyndrom zahrnující intelektovou nedostatečnost, faciální dysmorfii, hypermobilitu kloubů a ztrátu sluchu= en
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM618798Evalidated
MONDO32922Evalidated

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 (4):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TET3Disease-causing germline mutation(s) inAssessedHGNC:28313ENSG000001876056135552p13.1tet methylcytosine dioxygenase 331928709[PMID]_34750377[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated31928709[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated31928709[PMID]_ORPHANET

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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card