raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:220295

Xeroderma pigmentosum-Cockayne syndrome complex

Synonyms: XP/CS complex

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Xeroderma pigmentosum/Cockayne syndrome complex (XP/CS complex) is characterized by the cutaneous features of xeroderma pigmentosum (XP) together with the systemic and neurological features of Cockayne syndrome (CS).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enXeroderma pigmentosum-Cockayne syndrome complexXP/CS complex
frComplexe Xeroderma pigmentosum-syndrome de CockayneComplexe XP/CS
deXeroderma pigmentosum/Cockayne-Syndrom-KomplexXP/CS
esComplejo xeroderma pigmentoso/síndrome de CockayneComplejo XP/CS
itComplesso xeroderma pigmentoso-sindrome di CockayneComplesso XP/CS
nlXeroderma pigmentosum - syndroom van Cockayne-complexXP/CS-complex
ptComplexo xeroderma pigmentoso/síndrome Cockayne
plKompleks skóra pergaminowa/zespół Cockayne'aXP/CS kompleks
csKomplex zahrnující xeroderma pigmentosum a Cockayneův syndromXP/CS komplex
ukКомплекс пігментна ксеродермія - синдром КоккенаКомплекс XP/CS
zh着色性干皮病-Cockayne综合征着色性干皮病/Cockayne综合征
trKseroderma pigmentosum-Cockayne sendrom kompleksiXP/CS kompleksi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM278730BTNTvalidated
OMIM278760BTNTvalidated
OMIM278780BTNTvalidated
OMIM610651BTNTvalidated
ICD-10Q87.1NTBTattributedvalidated
ICD-11LD2BNTBTindexvalidated
MONDO0016354Evalidated
UMLSC4304411Evalidated

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 (14):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

4 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ERCC2Disease-causing germline mutation(s) inAssessedHGNC:3434ENSG0000010488412634019q13.32ERCC excision repair 2, TFIIH core complex helicase subunit20301571[PMID]
ERCC3Disease-causing germline mutation(s) inAssessedHGNC:3435ENSG000001631611335102q14.3ERCC excision repair 3, TFIIH core complex helicase subunit20301571[PMID]
ERCC4Disease-causing germline mutation(s) inAssessedHGNC:3436ENSG0000017559513352016p13.12ERCC excision repair 4, endonuclease catalytic subunit20301571[PMID]
ERCC5Disease-causing germline mutation(s) inAssessedHGNC:3437ENSG0000013489913353013q33.1ERCC excision repair 5, endonuclease20301571[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families30 casesWorldwideCase(s)Validated[EXPERT]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

29 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0004337Abnormality of amino acid metabolism
HP:0002634Arteriosclerosis
HP:0001251Ataxia
HP:0004326Cachexia
HP:0000992Cutaneous photosensitivity
HP:0004334Dermal atrophy
HP:0000958Dry skin
HP:0000365Hearing impairment
HP:0000238Hydrocephalus
HP:0001249Intellectual disability
HP:0000252Microcephaly
HP:0007587Numerous pigmented freckles
HP:0000639Nystagmus
HP:0000648Optic atrophy
HP:0001029Poikiloderma
HP:0007495Prematurely aged appearance
HP:0000488Retinopathy
HP:0004322Short stature
HP:0000988Skin rash
HP:0001257Spasticity
HP:0001025Urticaria
Frequent (79-30%)
HP:0002671Basal cell carcinoma
HP:0001289Confusion
HP:0007108Demyelinating peripheral neuropathy
HP:0000651Diplopia
HP:0001260Dysarthria
HP:0001263Global developmental delay
HP:0002861Melanoma
HP:0006739Squamous cell carcinoma of the skin

Run the differential on the 12 obligate / very frequent terms

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Sources for this card