raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:242

46,XY complete gonadal dysgenesis

Synonyms: 46,XY CGD · 46,XY pure gonadal dysgenesis · Swyer syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive, X-linked recessive, Y-linked
Age of onset
Adolescent, Adult
Status
active

A rare disorder/difference of sex development (DSD) associated with absence in gonadal development that results in the presence of female appearing external and internal genitalia in presence of a 46,XY karyotype.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en46,XY complete gonadal dysgenesis46,XY CGD · 46,XY pure gonadal dysgenesis · Swyer syndrome
frDysgénésie gonadique complète 46,XYDysgénésie gonadique pure 46,XY · Syndrome de Swyer
de46,XY-Gonadendysgenesie, vollständige46,XY reine Gonadendysgenesie · 46,XY-CGD · Swyer-Syndrom
esDisgenesia gonadal completa 46,XYCGD 46,XY · Disgenesia gonadal pura 46,XY · Síndrome de Swyer
itDisgenesia gonadica completa 46,XYCGD 46,XY · Disgenesia gonadica pura 46,XY · PGD 46,XY · Sindrome di Swyer
nl46,XY totale gonadale dysgenesie46,XY CGD · 46,XY zuivere gonadale dysgenesie · Syndroom van Swyer
ptDisgenesia gonadal completa 46,XYCGD 46,XY
plCałkowita dysgenezja gonad 46,XY46,XY CGD · 46,XY czysta dysgenezja gonad · Zespół Swyera
cs46,XY kompletní gonadální dysgeneze46,XY CGD · 46,XY syndrom čisté gonadální dysgeneze · Swyerův syndrom
uk46,XY повна дисгенезія гонад46,XY CGD · 46,XY чиста дисгенезія гонад · Синдром Свейєра
zh46,XY完全性腺发育不全46,XY单纯性性腺发育不全
tr46, XY tam gonadal disgenezi46, XY CGD · Swyer sendromu · 46, XY saf gonadal disgenezi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM154230BTNTvalidated
OMIM233420BTNTvalidated
OMIM300018BTNTvalidated
OMIM400044Evalidated
OMIM612965BTNTvalidated
OMIM613080BTNTvalidated
OMIM613762BTNTvalidated
OMIM616425BTNTvalidated
ICD-10Q99.1NTBTinclusionvalidated
ICD-11LD2A.1NTBTindexvalidated
MONDO0010765Evalidated
UMLSC2936694Evalidated
GARD5068Evalidated
MedDRA10084327Evalidated

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 (3):

No children.

4

Genes

10 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
WT1Candidate gene tested inNot yet assessedHGNC:12796ENSG0000018493760710211p13WT1 transcription factor25613702[PMID]_21384108[PMID]_21314844[PMID]
CBX2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:1552ENSG0000017389460277017q25.3chromobox 219361780[PMID]
SRYDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:11311ENSG00000184895480000Yp11.2sex determining region Y20301714[PMID]
DHHDisease-causing germline mutation(s) inAssessedHGNC:2865ENSG0000013954960542312q13.12desert hedgehog signaling molecule20301714[PMID]
DHX37Disease-causing germline mutation(s) inAssessedHGNC:17210ENSG0000015099061736212q24.31DEAH-box helicase 3731337883[PMID]
MAP3K1Disease-causing germline mutation(s) inAssessedHGNC:6848ENSG000000950156009825q11.2mitogen-activated protein kinase kinase kinase 121129722[PMID]
NR0B1Disease-causing germline mutation(s) inAssessedHGNC:7960ENSG00000169297300473Xp21.2nuclear receptor subfamily 0 group B member 130879272[PMID]
NR5A1Disease-causing germline mutation(s) inAssessedHGNC:7983ENSG000001369311847579q33.3nuclear receptor subfamily 5 group A member 120301714[PMID]
SOX9Disease-causing germline mutation(s) inAssessedHGNC:11204ENSG0000012539860816017q24.3SRY-box transcription factor 922051515[PMID]
DMRT1Role in the phenotype ofAssessedHGNC:2934ENSG000001370906024249p24.3doublesex and mab-3 related transcription factor 120685758[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidated18410658[PMID]_27603905[PMID]_ORPHANET
Prevalence at birthUnknown—WorldwideClass onlyValidated18410658[PMID]_27603905[PMID]_ORPHANET

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

4 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000044Hypogonadotropic hypogonadism
HP:0000037Male pseudohermaphroditism
HP:0000147Polycystic ovaries
HP:0008715Testicular dysgenesis

Run the differential on the 4 obligate / very frequent terms

7

Sources for this card