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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).
Features include very common findings: Hydrocephalus, Microcephaly, Hearing loss (hearing impairment), and Damage to the retina (retinopathy) and others; and common findings: Diplopia, Dysarthria, Global developmental delay, and Confusion and others.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 7 | Hydrocephalus, Intellectual disability, Ataxia |
Phenotype severity distribution: 21 very common features, 8 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for xeroderma pigmentosum-Cockayne syndrome complex.
3 publications have been identified in PubMed for xeroderma pigmentosum-Cockayne syndrome complex. Research spans Case Report / Case Series (67%) and Review / Meta-Analysis (33%).
Nakazawa Y (2025). [PMID: 39704188](https://pubmed.ncbi.nlm.nih.gov/39704188/). *FEBS Lett*. [Review / Meta-Analysis]
Saluja A (2024). [PMID: 38975443](https://pubmed.ncbi.nlm.nih.gov/38975443/). *Cureus*. [Case Report / Case Series]
Bahap Y (2024). [PMID: 39119453](https://pubmed.ncbi.nlm.nih.gov/39119453/). *Mol Syndromol*. [Case Report / Case Series]
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 3:07 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Skin |
5 |
Dry skin, Skin rash, Cutaneous photosensitivity |
Eyes | 4 | Damage to the retina (retinopathy), Nystagmus, Damage to the optic nerve (optic atrophy) |
Muscles | 2 | Damage to the optic nerve (optic atrophy), Dermal atrophy |
Growth and development | 2 | Short stature, Cachexia |
Head and neck | 1 | Microcephaly |
Ears | 1 | Hearing loss (hearing impairment) |
Metabolism | 1 | Abnormality of amino acid metabolism |