raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:96183

Maternal uniparental disomy of chromosome 9 syndrome

Synonyms: UPD(9)mat

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

Maternal uniparental disomy of chromosome 9 is a uniparental disomy of maternal origin that most likely does not have any phenotypic expression except from cases of homozygosity for a recessive disease mutation for which only mother is a carrier.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMaternal uniparental disomy of chromosome 9 syndromeUPD(9)mat
frSyndrome de disomie uniparentale maternelle du chromosome 9UPD(9) maternelle · UPD(9)mat
deUniparentale Disomie 9, maternale= en
esSíndrome de disomía uniparental materna del cromosoma 9= en
itSindrome disomia uniparentale materna del cromosoma 9= en
nlMaternale uniparentale disomie van chromosoom 9-syndroom= en
ptDissomia uniparental de origem materna, cromossoma 9
plZespół jednorodzicielskiej disomii chromosomu 9 pochodzenia matczynego= en
csMaternální uniparentální dizomie chromozomu 9= en
ukМатеринська уніпарентна дисомія хромосоми 9= en
zh母源性9号染色体单亲二体母源性UPD(9)
tr9. kromozomun maternal uniparental dizomisiUPD (9) mat

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q99.8NTBTattributedvalidated
ICD-11LD45.0NTBTindexvalidated
MONDO0019914Evalidated
UMLSC4707721Evalidated

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

0 records

No prevalence record in this release.

6

HPO phenotypes

21 annotations · validated 2017-06-21
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003468Abnormal vertebral morphology
HP:0001558Decreased fetal movement
HP:0003070Elbow ankylosis
HP:0000324Facial asymmetry
HP:0001508Failure to thrive
HP:0011968Feeding difficulties
HP:0001263Global developmental delay
HP:0003089Hamstring contractures
HP:0001795Hyperconvex nail
HP:0002546Incomprehensible speech
HP:0001511Intrauterine growth retardation
HP:0002751Kyphoscoliosis
HP:0000276Long face
HP:0000369Low-set ears
HP:0000347Micrognathia
HP:0000545Myopia
HP:0040188Osteochondrosis
HP:0002999Patellar dislocation
HP:0000470Short neck
Occasional (29-5%)
HP:0000851Congenital hypothyroidism
HP:0007973Retinal dysplasia

Run the differential on the 12 obligate / very frequent terms

Annotation source: 1433238[PMID]_8734817[PMID]_20484477[PMID]

7

Sources for this card