raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:566231

Resistance to thyroid hormone due to a mutation in thyroid hormone receptor alpha

Synonyms: RTHa · Resistance to thyroid hormone alpha · Resistance to thyroid hormone due to a mutation in TRa

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
All ages
Status
active

A rare thyroid hormone signaling disorder characterized by a reduced T4/T3 ratio and normal levels of thyroid-stimulating hormone. The clinical phenotype variably includes neurodevelopmental delay (motor and cognitive), chronic constipation, anemia, disproportionate short stature and delayed bone age, skin tags, decreased metabolic rate, mild bradycardia, delayed teeth eruption and skeletal abnormalities. Dysmorphic craniofacial features, such as macrocephaly, coarse facies, flattened nasal bridge, macroglossia, and thick lips can be present. Disease manifestations may vary from very mild to severe.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enResistance to thyroid hormone due to a mutation in thyroid hormone receptor alphaRTHa · Resistance to thyroid hormone alpha · Resistance to thyroid hormone due to a mutation in TRa
frRésistance aux hormones thyroïdiennes par mutations du récepteur aux hormones thyroïdiennes alphaRTHa · Résistance aux hormones thyroïdiennes alpha · Résistance aux hormones thyroïdiennes par mutations de TRa
deResistenz gegen Schilddrüsenhormone durch Mutation im Thyroidhormonrezeptor alphaRTHa · Resistenz gegen Schilddrüsenhormone durch Mutation im TRa · Resistenz gegen Thyroidhormon alpha
esResistencia a la hormona tiroidea por una mutación en el receptor alfa de hormona tiroideaRTHa · Resistencia a la hormona tiroidea por una mutación en TRa
itResistenza all'ormone tiroideo da mutazione nel recettore dell'ormone tiroideo alfaRTHa · Resistenza all'ormone tiroideo alfa · Resistenza all'ormone tiroideo da mutazione di TRa
nlResistentie tegen thyroïdhormoon door een mutatie in thyroïdhormoonreceptor-alfaRTHa · Resistentie tegen thyroïdhormoon door een mutatie in TRa · Resistentie tegen thyroïdhormoon-alfa
ptResistência a levotiroxina por mutação no recetor alfa da hormona tiroideia
plOporność na hormon tarczycy spowodowana mutacją receptora alfa hormonu tarczycyOporność na hormon tarczycy alpha · Oporność na hormon tarczycy z powodu mutacji w TRa
csRezistence na hormony štítné žlázy způsobené mutací v receptoru alfa pro hormony štítné žlázy= en
ukРезистентність до гормонів щитовидної залози, зумовлена мутацією в рецепторі альфа-гормону щитовидної залозиРезистентність до альфа-гормону щитовидної залози · Резистентність до гормонів щитовидної залози через мутацію в TRa · RTHa
zh甲状腺激素受体α突变所致甲状腺激素的抵抗甲状腺激素α抵抗
trTiroid hormonu reseptör alfa mutasyona bağlı olarak tiroid hormonuna dirençTRa'daki mutasyona bağlı tiroid hormonuna direnç · RTHa · Tiroid hormonu alfa direnci

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614450Evalidated
ICD-10E03.8NTBTattributedvalidated
ICD-115A00.00NTBTattributedvalidated
MONDO0034216Evalidated
UMLSC5680127Evalidated

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):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
THRADisease-causing germline mutation(s) inAssessedHGNC:11796ENSG0000012635119012017q21.1thyroid hormone receptor alpha25670821[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families35 casesWorldwideCase(s)Validated30842990[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_30842990[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

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

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Sources for this card