raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:329235

X-linked central congenital hypothyroidism with late-onset testicular enlargement

Synonyms: IGSF1 deficiency syndrome · X-linked central congenital hypothyroidism with late-onset macroorchidism

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

X-linked central congenital hypothyroidism with late-onset testicular enlargement is a rare, genetic, endocrine disease characterized by central hypothyroidism, testis enlargement in adolescence resulting in adult macroorchidism, delayed pubertal testosterone rise with a subsequent delayed pubertal growth spurt, small thyroid gland, and variable prolactin and growth hormone deficiency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enX-linked central congenital hypothyroidism with late-onset testicular enlargementIGSF1 deficiency syndrome · X-linked central congenital hypothyroidism with late-onset macroorchidism
frHypothyroïdie congénitale centrale avec macroorchidie tardive liée à l'XSyndrome par déficit en IGSF1
deX-chromosomale kongenitale zentrale Hypothyreose mit spät-beginnender testikulärer VergrößerungIGSF1-Mangelsyndrom · X-chromosomale kongenitale zentrale Hypothyreose mit spät beginnender Makroorchidie
esHipotiroidismo congénito central ligado al cromosoma X con agrandamiento testicular de inicio tardíoHipotiroidismo congénito central ligado al cromosoma X con macroorquidismo de inicio tardío · Síndrome de deficiencia de IGSF1
itIpotiroidismo congenito centrale legato all'X con ingrandimento testicolare ad esordio tardivoIpotiroidismo congenito centrale con macroorchidismo a esordio tardivo, legato all'X · Sindrome da deficit di IGSF1
nlX-gebonden centrale congenitale hypothyreoïdie met laat optredende testesvergrotingIGSF1-deficiëntiesyndroom · X-gebonden centrale congenitale hypothyreoïdie met laat optredend macro-orchidisme · X-gebonden centrale congenitale hypothyreoïdie met laat optredende macro-orchidie
ptHipotiroidismo central congénito com aumento testicular de início tardio ligado ao X
plOśrodkowa wrodzona niedoczynność tarczycy sprzężona z chromosomem X z powiększeniem jąder o późnym początkuOśrodkowa wrodzona niedoczynność tarczycy sprzężona z chromosomem X z makroorchidyzmem o późnym początku · Zespół niedoboru IGSF1
csX-vázaná centrální vrozená hypotyreóza s testikulárním zvětšením s pozdním začátkemSyndrom IGSF1 deficitu · X-vázaná centrální vrozená hypotyreóza s makroorchidismem s pozdním začátkem
ukХ-зчеплений центральний вроджений гіпотиреоз із пізнім збільшенням яєчокСиндром дефіциту IGSF1 · Х-зчеплений центральний вроджений гіпотиреоз з пізнім макроорхізмом
zhX连锁中枢性先天性甲减和迟发性睾丸肥大X连锁中枢性先天性甲减和迟发性巨睾丸
trX'e bağlı merkezi doğumsal hipotiroidi ile seyreden geç başlangıçlı testis büyümesiIGSF1 eksikliği sendromu · X'e bağlı merkezi doğumsal hipotiroidi ve geç başlangıçlı makroorşidi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM300888Evalidated
ICD-10E03.1NTBTattributedvalidated
ICD-115A61.41NTBTattributedvalidated
MONDO0010475Evalidated
UMLSC4749943Evalidated

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.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IGSF1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:5948ENSG00000147255300137Xq26.1immunoglobulin superfamily member 123143598[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families27 casesWorldwideCase(s)Validated23143598[PMID]
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.

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Sources for this card