raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:88620

Isolated congenital anosmia

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant, X-linked recessive
Age of onset
Infancy, Neonatal
Status
active

A rare otorhinolaryngologic disease characterized by total or partial anosmia at birth. The anosmia is caused by a defect in the development of the olfactory bulbs or by replacement of the olfactory epithelium by respiratory epithelium. Isolated congenital anosmia is found in some parents of individuals with Kallman syndrome.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIsolated congenital anosmia
frAnosmie congénitale isolée
deAnosmie, isolierte kongenitale
esAnosmia congénita aislada
itAnosmia congenita isolata
nlGeïsoleerde congenitale anosmie
ptAnosmia congénita isolada
plIzolowana wrodzona anosmia
csIzolovaná vrozená anosmie
ukІзольована вроджена аносмія
zh孤立型先天性失嗅
trİzole doğumsal anozmi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM107200Evalidated
ICD-10Q07.8NTBTattributedvalidated
ICD-11CA0YNTBTindexvalidated
MONDO0007137Evalidated
MeSHC535983Evalidated
UMLSC0393778Evalidated
GARD9486Evalidated
MedDRA10079876Evalidated

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

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CNGA2Disease-causing germline mutation(s) inAssessedHGNC:2149ENSG00000183862300338Xq28cyclic nucleotide gated channel subunit alpha 225156905[PMID]
TENM1Disease-causing germline mutation(s) inAssessedHGNC:8117ENSG00000009694300588Xq25teneurin transmembrane protein 127040985[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families15 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