raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1811

Odontomicronychial dysplasia

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

A rare, hereditary ectodermal dysplasia syndrome characterized by involvement of teeth and nails - precocious eruption and shedding of deciduous dentition, precocious eruption of secondary dentition with short, rhomboid roots, and short, thin, slow growing nails.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOdontomicronychial dysplasia
frDysplasie ectodermique odonto-micronychiale
deDysplasie, ektodermale odonto-mikronychiale
esDisplasia odontomicroniquial
itDisplasia odonto-micro-onichiale
nlOdontomicronychiale dysplasie
ptDisplasia odonto-microniquial
plDysplazja zębowa ze skróceniem płytki paznokci
csOdontomikronychiální dysplázie
ukОдонтомікроніхіальна дисплазія
zh牙-小甲发育不良
trOdontomicronychial displazi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601319Evalidated
ICD-10Q84.8NTBTattributedvalidated
MONDO0011034Evalidated
MeSHC537741Evalidated
UMLSC1832473Evalidated
GARD4053Evalidated

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 (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated8728698[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_8728698[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

9 annotations · validated 2023-04-28
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001597Abnormal nail morphology
HP:0000164Abnormality of the dentition
HP:0000670Carious teeth
HP:0000968Ectodermal dysplasia
HP:0006337Premature eruption of permanent teeth
HP:0006323Premature loss of primary teeth
HP:0001799Short nail
HP:0008383Slow-growing nails
HP:0001816Thin nail

Run the differential on the 9 obligate / very frequent terms

Annotation source: 8728698[PMID]

7

Sources for this card