raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:79499

Autosomal dominant deafness-onychodystrophy syndrome

Synonyms: Autosomal dominant hearing loss-onychodystrophy syndrome · DDOD syndrome

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

A rare multiple congenital anomalies syndrome characterized by congenital hearing impairment, small or absent nails on the hands and feet, and small or absent terminal phalanges.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant deafness-onychodystrophy syndromeAutosomal dominant hearing loss-onychodystrophy syndrome · DDOD syndrome
frSyndrome de surdité-onychodystrophie autosomique dominantSyndrome DDOD
deSchwerhörigkeit-Onychodystrophie-Syndrom, autosomal-dominantesDDOD-Syndrom
esSíndrome de sordera-onicodistrofia autosómica dominanteSíndrome DDOD · Síndrome de hipoacusia-onicodistrofia autosómica dominante
itSindrome sordità-onicodistrofia, autosomica dominanteSindrome DDOD
nlAustosomaal dominant doofheid - onychodystrofie-syndroomDDOD-syndroom
ptSurdez-onicodistrofia autossómica dominante
plZepół autosomalnie dominującej głuchoty i onychodystrofiiZespół DDOD
csAutozomálně dominantní syndrom zahrnující hluchotu a onychodystrofiiDDOD syndrom
ukАутосомно-домінантний синдром глухоти-оніходистрофіїСиндром аутосомно-домінантної приглухуватості-оніходистрофії · Синдром DDOD
zh常染色体显性耳聋-指甲营养不良综合征常染色体显性遗传性听力丧失-甲营养不良综合征
trOtozomal dominant sağırlık-onikodistrofi sendromuDDOD sendromu · Otozomal dominant işitme kaybı onikodistrofi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM124480Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD27.0YNTBTindexvalidated
MONDO0007420Evalidated
MeSHC567274Evalidated
UMLSC2675730Evalidated
GARD4732Evalidated

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 (1):

  • ORPHA:3231Deafness-onychodystrophy syndrome
    rare developmental anomalies during embryogenesis; rare genetic diseases; rare neurological diseases; rare skin diseases; rare ophthalmic disorders; rare otorhinolaryngological diseases

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ATP6V1B2Disease-causing germline mutation(s) inAssessedHGNC:854ENSG000001474166069398p21.3ATPase H+ transporting V1 subunit B224913193[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families22 casesWorldwideCase(s)Validated[EXPERT]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated[EXPERT]

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

20 annotations · validated 2019-03-18
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001817Absent fingernail
HP:0008625Severe sensorineural hearing impairment
Frequent (79-30%)
HP:0000164Abnormality of the dentition
HP:0001802Absent toenail
HP:0008386Aplasia/Hypoplasia of the nails
HP:0000677Oligodontia
HP:0001199Triphalangeal thumb
Occasional (29-5%)
HP:0001999Abnormal facial shape
HP:0200104Absent fifth fingernail
HP:0012554Absent thumbnail
HP:0001057Aplasia cutis congenita
HP:0000268Dolichocephaly
HP:0000348High forehead
HP:0001800Hypoplastic toenails
HP:0001249Intellectual disability
HP:0001763Pes planus
HP:0002465Poor speech
HP:0001250Seizure
HP:0009778Short thumb
HP:0200141Small, conical teeth

Run the differential on the 2 obligate / very frequent terms

Annotation source: 24421866[PMID]_24913193[PMID]_28396750[PMID]_21998865[PMID]

7

Sources for this card