raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:261483

Xq27.3q28 duplication syndrome

Synonyms: Dup(X)(q27.3q28) · Trisomy Xq27.3-q28 · Trisomy Xq27.3q28 · Xq27.3-q28 microduplication syndrome

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

Xq27.3q28 duplication syndrome is a recently described syndrome characterized by short stature, hypogonadism, developmental delay and facial dysmorphism.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enXq27.3q28 duplication syndromeDup(X)(q27.3q28) · Trisomy Xq27.3-q28 · Trisomy Xq27.3q28 · Xq27.3-q28 microduplication syndrome
frSyndrome de duplication Xq27.3q28Dup(X)(q27.3q28) · Syndrome de microduplication Xq27.3-q28 · Trisomie Xq27.3-q28 · Trisomie Xq27.3q28
deXq27.3q28-Duplikations-SyndromDel(X)(q27.3q28) · Dup(X)(q27.3q28) · Trisomie Xq27.3-q28
esSíndrome de duplicación Xq27.3q28Dup(X)(q27.3q28) · Síndrome de microduplicación Xq27.3-q28 · Trisomía Xq27.3-q28 · Trisomía Xq27.3q28
itSindrome da duplicazione Xq27.3q28Dup(X)(q27.3q28) · Sindrome da microduplicazione Xq27.3-q28 · Trisomia Xq27.3-q28 · Trisomia Xq27.3q28
nlXq27.3q28-duplicatiesyndroomDup(X)(q27.3q28) · Trisomie Xq27.3-q28 · Trisomie Xq27.3q28 · Xq27.3-q28-microduplicatiesyndroom
ptSíndrome de duplicação Xq27.3q28Trissomia Xq27.3q28
plZespół duplikacji Xq27.3q28Dup(X)(q27.3q28) · Trisomia Xq27.3q28 · Trisomia Xq27.3-q28 · Zespół mikroduplikacji Xq27.3-q28
csSyndrom duplikace Xq27.3q28Dup(X)(q27.3q28) · Trizomie Xq27.3-q28 · Trizomie Xq27.3q28 · Xq27.3-q28 mikroduplikační syndrom
ukСиндром дуплікації Xq27.3q28Dup(X)(q27.3q28) · Трисомія Xq27.3q28 · Трисомія Xq27.3-q28 · Синдром мікродуплікації Xq27.3-q28
zhXq27.3q28重复综合征Xq27.3-q28微重复综合征
trXq27.3q28 duplikasyon sendromuDup (X) (q27.3q28) · Trizomi Xq27.3q28 · Trizomi Xq27.3-q28 · Xq27.3-q28 mikroduplikasyon sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM300869Evalidated
ICD-10Q99.8NTBTattributedvalidated
ICD-11LD51NTBTindexvalidated
MONDO0010467Evalidated
UMLSC4305103Evalidated

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
FMR1Role in the phenotype ofAssessedHGNC:3775ENSG00000102081309550Xq27.3fragile X messenger ribonucleoprotein 119844254[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families8 casesWorldwideCase(s)Validated19844254[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

19 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001620Abnormally high-pitched voice
HP:0000414Bulbous nose
HP:0000028Cryptorchidism
HP:0008734Decreased testicular size
HP:0000490Deeply set eye
HP:0001508Failure to thrive
HP:0001263Global developmental delay
HP:0000135Hypogonadism
HP:0001256Intellectual disability, mild
HP:0001773Short foot
HP:0004322Short stature
HP:0200055Small hand
HP:0000233Thin vermilion border
Frequent (79-30%)
HP:0002750Delayed skeletal maturation
HP:0000771Gynecomastia
HP:0001252Hypotonia
HP:0001511Intrauterine growth retardation
HP:0002231Sparse body hair
HP:0001956Truncal obesity

Run the differential on the 12 obligate / very frequent terms

Annotation source: 19844254[PMID]

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Sources for this card