raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3231

Deafness-onychodystrophy syndrome

Synonyms: Hearing loss-onychodystrophy syndrome

Type
Clinical group
Group
Group of disorders
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Childhood
Status
active

Deafness-onychodystrophy syndrome is a group of rare, genetic, developmental defect during embryogenesis disorders characterized by the association of sensorineural deafness and onychodystrophy (e.g. absent/hypoplastic finger and toenails), as well as brachydactyly and finger-like thumbs. Additional features present in one of the diseases comprising this group include osteodystrophy, intellectual disability, seizures, developmental delay, and distinctive facies.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enDeafness-onychodystrophy syndromeHearing loss-onychodystrophy syndrome
frSyndrome de surdité-onychodystrophie
deSchwerhörigkeit-Onychodystrophie-Syndrom
esSíndrome de sordera-onicodistrofiaSíndrome de hipoacusia-onicodistrofia
itSindrome sordità e onicodistrofiaSindrome DDOD · Sindrome sordità-onicodistrofia, autosomica dominante
nlDoofheid - onychodystrofie-syndroom
ptSíndrome de surdez-onicodistrofiaSíndrome de perda auditiva-onicodistrofia
plZespół niedosłuchu i onychodystrofiiZespół autosomalnie dominującej głuchoty i onychodystrofii · Zespół DDOD
csSyndrom zahrnující hluchotu a onychodystrofii= en
ukСиндром глухоти-оніходистрофіїСиндром приглухуватості-оніходистрофії
zh耳聋-甲营养不良综合征听力丧失-甲营养不良综合征
trSağırlık-onikodistrofi sendromuİşitme kaybı onikodistrofi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM124480BTNTvalidated
OMIM220500BTNTvalidated
MONDO17922Evalidated
UMLSC4751208Evalidated

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 (7):

Children (2):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families50 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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