raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:529962

17q24.2 microdeletion syndrome

Synonyms: Del(17)(q24)

Type
Malformation syndrome
Group
Disorder
Inheritance
Not applicable
Age of onset
Antenatal, Neonatal
Status
active

A rare, genetic, multiple congenital anomalies/dysmorphic features-intellectual disability syndrome characterized by developmental and speech delay, intellectual disability, feeding difficulties, failure to thrive, growth retardation, and associated malformations such as abnormality of fingers and toes (i.e. clinodactyly of the 5th finger, 2-3 toe syndactyly), microcephaly, heart defects, and upper airways anomalies. Observed facial dysmorphism includes hypertelorism, small, narrow or downslanting palpebral fissures, ptosis, epicanthus, ear malformations, broad nasal bridge, bulbous/prominent nose, short philtrum, thin lips, retrognathia/micrognathia, arched/cleft palate, and dental anomalies. Additional variable manifestations include hearing and visual impairment, seizures, joint anomalies, obesity, and behavioral/psychiatric disorders.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en17q24.2 microdeletion syndromeDel(17)(q24)
frSyndrome de microdélétion 17q24.2= en
deMikrodeletionssyndrom 17q24.2del(17)(q24)
esSíndrome de microdeleción 17q24.2= en
itSindrome da microdelezione 17q24.2
nl17q24.2-microdeletiesyndroom= en
ptSíndrome de microdeleção 17q24.2= en
plZespół mikrodelecji 17q24.2= en
csMikrodeleční syndrom 17q24.2= en
ukСиндром мікроделеції 17q24.2= en
zh染色体17q24.2 微缺失综合征染色体17q24.2缺失综合征
tr17q24.2 mikrodelesyon sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q93.5NTBTattributedvalidated
MONDO0035151Evalidated
UMLSC5680185Evalidated

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 (3):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
BPTFRole in the phenotype ofAssessedHGNC:3581ENSG0000017163460181917q24.2bromodomain PHD finger transcription factor28465847[PMID]_29696806[PMID]
PSMD12Role in the phenotype ofAssessedHGNC:9557ENSG0000019717060445017q24.2proteasome 26S subunit, non-ATPase 1228465847[PMID]_29696806[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_28465847[PMID]_29696806[PMID]
Cases/families19 casesWorldwideCase(s)Validated29696806[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

47 annotations · validated 2019-03-20
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000750Delayed speech and language development
HP:0001256Intellectual disability, mild
HP:0001956Truncal obesity
Frequent (79-30%)
HP:0003028Abnormality of the ankles
HP:0003019Abnormality of the wrist
HP:0000739Anxiety
HP:0000708Atypical behavior
HP:0000475Broad neck
HP:0002967Cubitus valgus
HP:0000490Deeply set eye
HP:0000494Downslanted palpebral fissures
HP:0001531Failure to thrive in infancy
HP:0011968Feeding difficulties
HP:0008935Generalized neonatal hypotonia
HP:0000316Hypertelorism
HP:0010794Impaired visuospatial constructive cognition
HP:0000347Micrognathia
HP:0008551Microtia
HP:0011800Midface retrusion
HP:0000545Myopia
HP:0008607Progressive conductive hearing impairment
HP:0000508Ptosis
HP:0000403Recurrent otitis media
HP:0002650Scoliosis
HP:0001250Seizure
HP:0000470Short neck
HP:0000322Short philtrum
HP:0000664Synophrys
HP:0000574Thick eyebrow
HP:0000219Thin upper lip vermilion
HP:0000692Tooth malposition
HP:0000325Triangular face
HP:0009824Upper limb undergrowth
HP:0000431Wide nasal bridge
Occasional (29-5%)
HP:0000718Aggressive behavior
HP:0011304Broad thumb
HP:0000712Emotional lability
HP:0000738Hallucinations
HP:0200053Hemihypotrophy of lower limb
HP:0000362Otosclerosis
HP:0011648Patent ductus arteriosus after birth at term
HP:0001657Prolonged QT interval
HP:0000869Secondary amenorrhea
Very rare (<4-1%)
HP:0012683Pineal cyst
HP:0001642Pulmonic stenosis
HP:0000076Vesicoureteral reflux
Excluded (0%)
HP:0000824Decreased response to growth hormone stimulation test

Run the differential on the 3 obligate / very frequent terms

Annotation source: 22166941[PMID]

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Sources for this card