raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:96071

Distal duplication 3p syndrome

Synonyms: Distal trisomy 3p · Telomeric duplication 3p · Trisomy 3pter

Type
Malformation syndrome
Group
Disorder
Age of onset
Antenatal, Neonatal
Status
active

Distal trisomy 3p is a rare chromosomal anomaly syndrome, resulting from the partial duplication of the short arm of chromosome 3, with highly variable phenotype principally characterized by craniofacial dysmorphism (incl. brachy-/microcephaly, square facies, frontal bossing, bitemporal indentation, hypertelorism/telecanthus, low-set and/or dysmorphic ears, short nose with broad, flat nasal bridge, prominent cheeks and philtrum, downturned corners of mouth, micrognathia/retrognathia, short neck) associated with psychomotor delay, moderate to severe intellectual disability, cardiac (e.g. patent ductus arteriosus) and urogenital (e.g. renal hypoplasia, hypogenitalism) abnormalities, as well as seizures and presence of whorls on fingers.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enDistal duplication 3p syndromeDistal trisomy 3p · Telomeric duplication 3p · Trisomy 3pter
frSyndrome de duplication distale 3pDuplication 3pter · Duplication télomérique 3p · Trisomie 3pter · Trisomie distale 3p · Trisomie télomérique 3p
deDistale Duplikation 3pDistale Trisomie 3p · Duplikation 3p, distale · Telomere Duplikation 3p · Trisomie 3pter
esSíndrome de duplicación terminal 3pTrisomía 3pter · Trisomía terminal 3p
itSindrome duplicazione 3p distaleDuplicazione 3p telomerica · Trisomia 3pter · Trisomia 3p distale
nlDistale duplicatie 3p-syndroomDistale trisomie 3p · Telomerische duplicatie 3p · Trisomie 3pter
ptDuplicação distal 3pDuplicação telomérica 3p · Trissomia 3pter · Trissomia distal 3p
plZespół duplikacji dystalnej 3pDuplikacja dystalna 3p · Duplikacja telomerowa 3p · Trisomia 3pter
csDistální trizomie 3pDistální duplikace 3p · Telomerická duplikace 3p · Trizomie 3pter
ukДистальна дуплікація 3pДистальна трисомія 3р · Теломерна дуплікація 3p · Трисомія 3pter
zh3号染色体短臂远端三体3号染色体短臂端粒重复
trDistal trizomi 3pTrizomi 3pter · Distal duplikasyon 3p · Telomerik duplikasyon 3p

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q92.3NTBTattributedvalidated
ICD-11LD41.21NTBTindexvalidated
MONDO0019872Evalidated
UMLSC4706938Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families50 casesWorldwideCase(s)ValidatedORPHANET
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