raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1702

Non-distal duplication 13q syndrome

Synonyms: Non-distal trisomy 13q · Non-telomeric trisomy 13q

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

Non-distal trisomy 13q is a rare chromosomal anomaly disorder, resulting from the partial duplication of the proximal long arm of chromosome 13, with a highly variable phenotype principally characterized by increased polymorphonuclear leucocyte projections and persistence of fetal hemoglobin, as well as growth and developmental delay and craniofacial dysmorphism (incl. microcephaly, depressed nasal bridge, stubby nose, low-set, malformed ears, cleft lip/palate, micrognathia). Strabismus, clinodactyly and undescended testes in males may also be associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNon-distal duplication 13q syndromeNon-distal trisomy 13q · Non-telomeric trisomy 13q
frSyndrome de duplication non distale 13qDélétion non télomérique 13q · Trisomie non distale 13q · Trisomie non télomérique 13q
deNicht-distale Duplikation 13qNicht-distale Trisomie 13q · Nicht-telomere Trisomie 13q
esSíndrome de duplicación intersticial 13qTrisomía intersticial 13q · Trisomía no terminal 13q
itSindrome duplicazione 13q non distaleTrisomia 13q non distale · Trisomia 13q non telomerica
nlNiet-distale duplicatie 13q-syndroomNiet-distale trisomie 13q · Niet-telomerische trisomie 13q
ptDuplicação não-distal 13qTrissomia não-distal 13q · Trissomia não-telomérica 13q
plZespół duplikacji nietelomerowej 13qInterstycjalna duplikacja 13q · Nietelomerowa trisomia 13q
csNon-distální trizomie 13qNon-distální duplikace 13q · Non-telomerická trizomie 13q
ukНедистальна дуплікація 13qНедистальна трисомія 13q · Нетеломерна трисомія 13q
zh13号染色体长臂非远端三体13号染色体长臂非远端重复
trDistal olmayan trizomi 13qTelomerik olmayan trizomi 13q · Distal olmayan duplikasyon 13q

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q92.3NTBTattributedvalidated
MONDO0015724Evalidated
UMLSC4707260Evalidated

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.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated10674161[PMID]_10674161[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated10674161[PMID]_10674161[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

27 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000499Abnormal eyelash morphology
HP:0002916Abnormality of chromosome segregation
HP:0009738Abnormality of the antihelix
HP:0009906Aplasia/Hypoplasia of the earlobes
HP:0100543Cognitive impairment
HP:0001028Hemangioma
HP:0000601Hypotelorism
HP:0000343Long philtrum
HP:0000774Narrow chest
HP:0003196Short nose
HP:0000664Synophrys
HP:0000574Thick eyebrow
HP:0000233Thin vermilion border
HP:0000243Trigonocephaly
HP:0006610Wide intermamillary distance
Frequent (79-30%)
HP:0001231Abnormal fingernail morphology
HP:0000164Abnormality of the dentition
HP:0001166Arachnodactyly
HP:0000028Cryptorchidism
HP:0000232Everted lower lip vermilion
HP:0100790Hernia
HP:0000218High palate
HP:0001800Hypoplastic toenails
HP:0000252Microcephaly
HP:0000347Micrognathia
HP:0001162Postaxial hand polydactyly
Occasional (29-5%)
HP:0008056Aplasia/Hypoplasia affecting the eye

Run the differential on the 12 obligate / very frequent terms

7

Sources for this card