raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:96123

Monosomy 22 syndrome

Synonyms: Del(22) · Deletion 22

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
active

A rare autosomal anomaly syndrome, with a highly variable phenotype, typically characterized by short length, joint abnormalities (e.g. dysplasia, hyperextensibility, contractures, dislocation), congenital cardiac defects, and craniofacial dysmorphism (incl. microcephaly, a high, prominent, narrow and/or hairy forehead, epicanthus, upward-slanting and/or small palpebral fissures, broad, high or depressed nasal bridge and malformed ears). Delayed motor development and intellectual disability is observed in patients not presenting early demise.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMonosomy 22 syndromeDel(22) · Deletion 22
frSyndrome de monosomie 22Del(22) · Délétion 22
deMonosomie 22= en
esSíndrome de monosomía 22Del(22) · Deleción 22
itSindrome monosomia 22Del(22) · Delezione 22
nlMonosomie 22-syndroomDel(22) · Deletie 22
ptMonossomia 22
plZespół monosomii chromosomu 22Del(22) · Delecja 22
csMonozomie 22Del(22) · Delece 22
ukМоносомія 22Del(22) · Делеція 22
zh22单体22号染色体单体缺失
trMonozomi 22Del (22) · Delesyon 22

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q93.0NTBTattributedvalidated
MONDO0019891Evalidated
UMLSC0795878Evalidated

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

40 annotations · validated 2017-04-26
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0000606Abnormality of the periorbital region
HP:0004209Clinodactyly of the 5th finger
HP:0000286Epicanthus
HP:0012368Flat face
HP:0000348High forehead
HP:0000218High palate
HP:0001249Intellectual disability
HP:0000343Long philtrum
HP:0002858Meningioma
HP:0045025Narrow palpebral fissure
HP:0000194Open mouth
HP:0000358Posteriorly rotated ears
HP:0000269Prominent occiput
HP:0000278Retrognathia
HP:0100242Sarcoma
HP:0100008Schwannoma
HP:0000470Short neck
HP:0000954Single transverse palmar crease
HP:0000664Synophrys
HP:0000233Thin vermilion border
HP:0000445Wide nose
Occasional (29-5%)
HP:0008066Abnormal blistering of the skin
HP:0005359Aplasia of the thymus
HP:0001217Clubbing
HP:0005781Contractures of the large joints
HP:0010541Cutis gyrata of scalp
HP:0006101Finger syndactyly
HP:0010785Gonadal neoplasm
HP:0001433Hepatosplenomegaly
HP:0000975Hyperhidrosis
HP:0001276Hypertonia
HP:0004840Hypochromic microcytic anemia
HP:0001386Joint swelling
HP:0000252Microcephaly
HP:0000054Micropenis
HP:0005272Prominent nasolabial fold
HP:0100324Scleroderma
HP:0001051Seborrheic dermatitis
HP:0008070Sparse hair
HP:0001072Thickened skin

Annotation source: 27765635[PMID]_24171707[PMID]_19659869[PMID]_10432935[PMID]_9511978[PMID]_7253004[PMID]_15588863[PMID]_2770830[PMID]

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Sources for this card