raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:96263

48,XXXY syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Not applicable, Unknown
Age of onset
Antenatal, Infancy, Neonatal
Status
active

The 48,XXXY syndrome represents a chromosomal anomaly of the aneuploidic type characterized by the presence of two extra X chromosomes in males.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en48,XXXY syndrome
frSyndrome 48,XXXY
de48,XXXY-Syndrom48, XXXY
esSíndrome 48,XXXY
itSindrome 48,XXXY
nl48,XXXY-syndroom
ptSíndrome 48,XXXY
plZespół 48,XXXY
cs48,XXXY syndrom
ukСиндром 48,XXXY
zh48,XXXY综合征
tr48, XXXY sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q98.1NTBTattributedvalidated
MONDO0019928Evalidated
UMLSC0265498Evalidated
GARD5676Evalidated
MedDRA10048228Evalidated

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 (6):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0001 / 100 000EuropeValue and classValidated[EXPERT]
Point prevalence1-9 / 100 000—EuropeClass onlyValidated[EXPERT]_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

62 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000027Azoospermia
HP:0008734Decreased testicular size
HP:0001263Global developmental delay
HP:0000135Hypogonadism
HP:0000789Infertility
HP:0001256Intellectual disability, mild
HP:0002463Language impairment
Frequent (79-30%)
HP:0000682Abnormality of dental enamel
HP:0005930Abnormality of epiphysis morphology
HP:0002099Asthma
HP:0007018Attention deficit hyperactivity disorder
HP:0000717Autism
HP:0000670Carious teeth
HP:0000389Chronic otitis media
HP:0004209Clinodactyly of the 5th finger
HP:0002019Constipation
HP:0000028Cryptorchidism
HP:0000684Delayed eruption of teeth
HP:0000457Depressed nasal ridge
HP:0200021Down-sloping shoulders
HP:0003042Elbow dislocation
HP:0000286Epicanthus
HP:0000771Gynecomastia
HP:0000316Hypertelorism
HP:0008736Hypoplasia of penis
HP:0001252Hypotonia
HP:0001382Joint hypermobility
HP:0010807Open bite
HP:0001763Pes planus
HP:0002974Radioulnar synostosis
HP:0002205Recurrent respiratory infections
HP:0000046Small scrotum
HP:0000486Strabismus
HP:0000098Tall stature
HP:0000679Taurodontia
HP:0000582Upslanted palpebral fissure
Occasional (29-5%)
HP:0030680Abnormal cardiovascular system morphology
HP:0012433Abnormal social behavior
HP:0000718Aggressive behavior
HP:0000739Anxiety
HP:0000581Blepharophimosis
HP:0000248Brachycephaly
HP:0000175Cleft palate
HP:0002673Coxa valga
HP:0000750Delayed speech and language development
HP:0000324Facial asymmetry
HP:0002020Gastroesophageal reflux
HP:0002827Hip dislocation
HP:0000023Inguinal hernia
HP:0000737Irritability
HP:0000303Mandibular prognathia
HP:0001513Obesity
HP:0002204Pulmonary embolism
HP:0000110Renal dysplasia
HP:0100753Schizophrenia
HP:0002650Scoliosis
HP:0001250Seizure
HP:0000470Short neck
HP:0001762Talipes equinovarus
HP:0001337Tremor
HP:0005978Type II diabetes mellitus
HP:0004936Venous thrombosis

Run the differential on the 7 obligate / very frequent terms

Annotation source: 17062147[PMID]_21342258[PMID]

7

Sources for this card