raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:456298

1p35.2 microdeletion syndrome

Synonyms: Del(1)(p35.2) · Deletion 1p35.2 · Monosomy 1p35.2

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

A rare chromosomal anomaly characterized by an intrauterine and postnatal growth retardation, short stature, developmental delay, learning difficulties, hearing loss, hypermetropia, and a recognisable facial dysmorphism including prominent forehead, long, myopathic facies, fine eyebrows, small mouth and micrognathia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en1p35.2 microdeletion syndromeDel(1)(p35.2) · Deletion 1p35.2 · Monosomy 1p35.2
frSyndrome de microdélétion 1p35.2Del(1)(p35.2) · Délétion 1p35.2 · Monosomie 1p35.2
deMikrodeletionssyndrom 1p35.2Del(1)(p35.2) · Deletion 1p35.2 · Monosomie 1p35.2
esSíndrome de microdeleción 1p35.2Del(1)(p35.2) · Deleción 1p35.2 · Monosomía 1p35.2
itSindrome da microdelezione 1p35.2Del(1)(p35.2) · Delezione 1p35.2 · Monosomia 1p35.2
nl1p35.2-microdeletiesyndroomDel(1)(p35.2) · Deletie 1p35.2 · Monosomie 1p35.2
ptSíndrome de microdeleção 1p35.2
plZespół mikrodelecji 1p35.2Del(1)(p35.2) · Delecja 1p35.2 · Monosomia 1p35.2
csMikrodeleční syndrom 1p35.2Del(1)(p35.2) · Delece 1p35.2 · Monozomie 1p35.2
ukСиндром мікроделеції 1p35.2Del(1)(p35.2) · Делеція 1p35.2 · Моносомія 1p35.2
zh1p35.2微缺失综合征1p35.2单体
tr1p35.2 mikrodelesyon sendromuDel(1)(p35.2) · Delesyon 1p35.2 · Monozomi1p35.2

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM617930Evalidated
ICD-10Q93.5NTBTattributedvalidated
MONDO0018697Evalidated
UMLSC5679992Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (5):

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)Validated25900906[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25900906[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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card