raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2975

46,XX difference of sex development-skeletal anomalies syndrome

historical

Synonyms: 46,XX disorder of sex development-skeletal anomalies syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Unknown
Age of onset
No data available
Status
historical

A rare difference of sex development characterized by primary amenorrhea and ambiguous external genitalia (enlarged clitoris with marked fusion of the labioscrotal folds) in association with skeletal anomalies (such as hypoplasia of the mandibular condyles and the maxilla, and ulnar dislocation of the radial heads), in the presence of a 46,XX karyotype and regular ovaries, fallopian tubes, and uterus. There have been no further descriptions in the literature since 1972.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en46,XX difference of sex development-skeletal anomalies syndrome46,XX disorder of sex development-skeletal anomalies syndrome
frSyndrome de différence du développement sexuel 46,XX-différences squelettiquesSyndrome d'anomalie du développement sexuel 46,XX-anomalies squelettiques
de46,XX-Störung der Geschlechtsentwicklung-Skelettanomalien-Syndrom46,XX-DSD-Skelettanomalien-Syndrom
esSíndrome de desarrollo sexual diferente 46,XX-anomalías esqueléticasSíndrome DSD 46,XX-anomalías esqueléticas · Síndrome de trastorno del desarrollo sexual 46,XX-anomalías esqueléticas
itMalattia dello sviluppo sessuale 46,XX-anomalie scheletrichePseudoermafroditismo femminile - anomalie scheletriche
nl46,XX-geslachtsontwikkelingsstoornis - skeletanomalieën-syndroom
ptSíndrome de doença do desenvolvimento sexual 46,XX-anomalias esqueléticasPseudo-hermafroditismo feminino-anomalias esqueléticas
plZaburzenie rozwoju płci z kariotypem 46,XX - anomalie szkieletowePseudohermafrodytyzm żeński - wady szkieletu
csSyndrom zahrnující 46,XX poruchu pohlavního vývoje a skeletální anomálieSyndrom zahrnující ženský pseudohermafroditismus a skeletální anomálie
ukСиндром 46,XX порушення статевої диференціації-скелетних аномалійСиндром 46,XX порушення статевого розвитку - скелетних аномалій
zh46XX性发育异常-骨骼异常综合征
tr46, XX cinsel gelişim bozukluğu-iskelet anomalileri sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM264270Evalidated
ICD-10Q56.2NTBTattributedvalidated
MONDO0009915Evalidated
UMLSC4518077Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated5042791[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_5042791[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

12 annotations · validated 2017-07-10
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0000061Ambiguous genitalia, female
HP:0003871Deformed humerus
HP:0003083Dislocated radial head
HP:0000063Fused labia minora
HP:0010650Hypoplasia of the premaxilla
HP:0040253Increased size of the clitoris
HP:0007628Mandibular condyle hypoplasia
HP:0000347Micrognathia
HP:0000786Primary amenorrhea
Excluded (0%)
HP:0000137Abnormality of the ovary
HP:0000130Abnormality of the uterus
HP:0000142Abnormality of the vagina

Annotation source: 5042791[PMID]

7

Sources for this card