raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1706

Mosaic trisomy 15 syndrome

Synonyms: Mosaic trisomy chromosome 15 · Trisomy 15 mosaicism

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

Mosaic trisomy 15 is a rare chromosomal anomaly syndrome principally characterized by intrauterine growth restriction, congenital cardiac anomalies (incl. ventricular and atrial septal defects, patent ductus arteriosus) and craniofacial dysmorphism (incl. hypertelorism, downslanting palpebral fissures, wide nasal bridge). Patients also present brain (e.g. hypoplastic cerebellum, ventricular asymmetry), renal (e.g. small dysplastic kidneys), and/or genital (undescended testis, small penis, hypoplastic labia majora) anomalies. Digital and skin pigmentation abnormalities have also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMosaic trisomy 15 syndromeMosaic trisomy chromosome 15 · Trisomy 15 mosaicism
frSyndrome de trisomie 15 en mosaïque
deMosaik-Trisomie 15Mosaik-Trisomie Chromosom 15
esSíndrome de trisomía 15 en mosaicoTrisomía del cromosoma 15 en mosaico
itSindrome trisomia 15 in mosaicoTrisomia del cromosoma 15 in mosaico
nlMozaïektrisomie 15-syndroomMozaïektrisomie chromosoom 15 · Trisomie 15 mozaïcisme
ptTrissomia 15 em mosaico
plZespół mozaikowej trisomii chromosomu 15= en
csMozaiková forma trizomie 15= en
ukМозаїчна трисомія 15Мозаїчна трисомія хромосоми 15 · Трисомія 15 мозаїчність
zh15号染色体嵌合三倍体嵌合15号染色体三体
trMozaik trizomi 15Trizomi 15 mozaisizmi · Mozaik trizomi kromozomu 15

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q92.1NTBTattributedvalidated
ICD-11LD40.YNTBTattributedvalidated
MONDO0015727Evalidated
MeSHC538037Evalidated
UMLSC2931707Evalidated
GARD5313Evalidated

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25736076[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

6 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001155Abnormality of the hand
HP:0000707Abnormality of the nervous system
HP:0001252Hypotonia
Frequent (79-30%)
HP:0002916Abnormality of chromosome segregation
HP:0100490Camptodactyly of finger
HP:0004097Deviation of finger

Run the differential on the 3 obligate / very frequent terms

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Sources for this card