raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:589856

Choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome

Synonyms: KMT2D-related choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome

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

A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by choanal atresia, athelia or hypoplastic nipples, branchial arch abnormalities, external ear malformations, hearing loss, thyroid abnormalities, delayed or absent pubertal development, and short stature. Developmental delay / intellectual disability are variably reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enChoanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndromeKMT2D-related choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome
frSyndrome d'atrésie des choanes-athélie-hypothyroïdie-retard pubertaire-petit tailleSyndrome d'atrésie des choanes-athélie-hypothyroïdie-retard pubertaire-petit taille associé à KMT2D
deChoanalatresie-Athelie-Hypothyreose-verzögerte Pubertät-Kleinwuchs-SyndromKMT2D-assoziierte Choanalatresie mit Athelie, Hypothyreose, verzögerte Pubertät und Kleinwuchs
esSíndrome de atresia de coanas-atelia-hipotiroidismo-retraso puberal-talla bajaSíndrome de atresia de coanas-atelia-hipotiroidismo-retraso puberal-talla baja asociado a KMT2D
itSindrome atresia delle coane, atelia, ipotiroidismo, ritardo della pubertà, bassa staturaSindrome atresia delle coane, atelia, ipotiroidismo, ritardo della pubertà, bassa statura correlata a KMT2D
nlChoane atresie - athelie - hypothyreoïdie - vertraagde puberteit - kleine gestalte-syndroomKMT2D-gerelateerd choane atresie - athelie - hypothyreoïdie - vertraagde puberteit - kleine gestalte-syndroom
ptSíndrome de atrésia das coanas-atelia-hipotiroidismo-puberdade tardia-baixa estatura
plZespół zarośnięcia nozdrzy tylnych, braku brodawek sutkowych, niedoczynności tarczycy, opóźnionego dojrzewania i niskiego wzrostuZespół zarośnięcia nozdrzy tylnych, braku brodawek sutkowych, niedoczynności tarczycy, opóźnionego dojrzewania i niskiego wzrostu związany z KMT2D
csSyndrom zahrnující choanální atrézii, atelii, hypotyreózu, opožděnou pubertu a nízký vzrůst= en
ukСиндром атрезії хоан-ателії-гіпотиреозу-затримки статевого дозрівання-низькорослостіKMT2D-повязаний синдром атрезіїї хоан-ателії-гіпотиреозу-затримки статевого дозрівання-низького зросту
zhChoanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome= en
trChoanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620186Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0035651Evalidated
UMLSC5680310Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (7):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KMT2DDisease-causing germline mutation(s) inAssessedHGNC:7133ENSG0000016754860211312q13.12lysine methyltransferase 2D31949313[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families18 casesWorldwideCase(s)Validated34369642[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated34369642[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.

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HPO phenotypes

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

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Sources for this card