raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:508476

Cleft lip and palate-craniofacial dysmorphism-congenital heart defect-hearing loss syndrome

Synonyms: Cleft lip and palate-craniofacial dysmorphism-congenital heart defect-deafness syndrome · Hyaluronidase 2 deficiency

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Neonatal
Status
active

A rare genetic multiple congenital anomalies/dysmorphic syndrome without intellectual disability characterized by unilateral or bilateral cleft lip and palate and craniofacial dysmorphism (including frontal bossing, hypertelorism, broad flat nasal bridge, cupped ears/thickened helices, and micrognathia). Additional manifestations are variable congenital cardiac anomalies, pectus excavatum, abnormalities of the hands and feet, ocular abnormalities (myopia, cataract, staphyloma), and conductive or sensorineural hearing loss.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCleft lip and palate-craniofacial dysmorphism-congenital heart defect-hearing loss syndromeCleft lip and palate-craniofacial dysmorphism-congenital heart defect-deafness syndrome · Hyaluronidase 2 deficiency
frSyndrome de fente labiopalatine-dysmorphie craniofaciale-cardiopathie congénitale-surditéDéficit en hyaluronidase 2
deLippen-Gaumenspalte-kraniofaziale Dysmorphie-kongenitaler Herzfehler-Hörverlust-SyndromHyaluronidase 2-Defizienz · Hyaluronidase 2-Mangel
esSíndrome de labio leporino y paladar hendido-dismorfia craneofacial-defecto cardíaco congénito-hipoacusiaDeficiencia de hialuronidasa 2 · Síndrome de labio leporino y paladar hendido-dismorfia craneofacial-defecto cardíaco congénito-sordera
itSindrome labioschisi e palatoschisi-dismorfismi craniofacciali-cardiopatie congenite-sorditàDeficit di ialuronidasi 2
nlGespleten lip en verhemelte - craniofaciale dysmorfie - congenitaal hartdefect - gehoorverlies-syndroomHyaluronidase 2-deficiëntie
ptSíndrome de fenda lábio-palatina-dismorfia craniofacial-cardiopatia congénita-perda auditiva
plZespół rozszczep wargi i podniebienia-dysmorfia twarzoczaszki-wrodzona wada serca- głuchotaNiedobór hialuronidazy 2
csSyndrom zahrnující rozštěp rtu a patra, kraniofaciální dysmorfismus, vrozenou srdeční vadu a ztrátu sluchuDeficit hyaluronidázy 2
ukСиндром розщілини губи та піднебіння-черепно-лицьового дизморфізму- вродженої вади серця-втрати слухуСиндром розщілини губи та піднебіння - черепно-лицьового дизморфізму - вродженої вади серця - глухоти · Дефіцит гіалуронідази 2
zh唇腭裂-颅面畸形-先天性心脏病-听力丧失综合症透明质酸酶2缺乏症
trYarık dudak ve damak-kraniofasiyal dismorfizm-doğumsal kalp defekti-işitme kaybı sendromuYarık dudak ve damak-kraniyofasiyal dismorfizm-doğumsal kalp defekti-sağırlık sendromu · Hyaluronidaz 2 eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM621063Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD25.YNTBTattributedvalidated
MONDO0034820Evalidated
UMLSC5568767Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
HYAL2Disease-causing germline mutation(s) inNot yet assessedHGNC:5321ENSG000000680016035513p21.31hyaluronidase 228081210[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families7 casesWorldwideCase(s)Validated28081210[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_28081210[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

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

7

Sources for this card