raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:363958

17q21.31 microdeletion syndrome

Synonyms: Del(17)(q21.31) · Monosomy 17q21.31

Type
Etiological subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

This disease is described under Koolen-De Vries syndrome

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en17q21.31 microdeletion syndromeDel(17)(q21.31) · Monosomy 17q21.31
frSyndrome de microdélétion 17q21.31Del(17)(q21.31) · Monosomie 17q21.31
deMikrodeletionssyndrom 17q21.31Del(17)(q21.31) · Monosomie 17q21.31
esSíndrome de microdeleción 17q21.31Del(17)(q21.31) · Monosomía 17q21.31
itSindrome da microdelezione 17q21.31Del(17)(q21.31) · Monosomia 17q21.31
nl17q21.31-microdeletiesyndroomDel(17)(q21.31) · Monosomie 17q21.31
ptSíndrome de microdeleção 17q21.31
plZespół mikrodelecji 17q21.31Del(17)(q21.31) · Monosomia 17q21.31
csMikrodeleční syndrom 17q21.31Del(17)(q21.31) · Monozomie 17q21.31
ukСиндром мікроделеції 17q21.31Del(17)(q21.31) · Моносомія 17q21.31
zh17q21.31微缺失综合征17q21.31单体
tr17q21.31 mikrodelesyon sendromuDel(17)(q21.31) · Monozomi 17q21.31
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM610443NTBTvalidated
ICD-10Q93.5NTBTattributedvalidated
ICD-11LD44.H0NTBTindexvalidated
MONDO0018216Evalidated
MeSHC566476Evalidated
UMLSC1864871Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KANSL1Role in the phenotype ofAssessedHGNC:24565ENSG0000012007161245217q21.31KAT8 regulatory NSL complex subunit 119447831[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0001.82 / 100 000EuropeValue and classValidated26306646[PMID]_[EXPERT]

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.

7

Sources for this card