[Presenile dementia in xeroderma pigmentosum]

Area of Science:

• Neurogenetics
• Neurodegenerative Diseases
• Rare Genetic Syndromes

Background:

• Xeroderma pigmentosum (XP) is an autosomal recessive neurocutaneous syndrome characterized by DNA repair defects.
• Neurological manifestations in XP are variable, with progressive mental retardation being a common feature.
• The typical onset of neurological symptoms in XP is during childhood.

Observation:

• This report details an unusual case of XP presenting with progressive presenile dementia.
• The patient exhibited significant cerebral atrophy on CT and MRI scans.
• No alternative etiological factors for the dementia were identified.

Findings:

• The co-occurrence of Xeroderma pigmentosum and Alzheimer's disease is considered, although not definitively proven.
• This case highlights an atypical neurological presentation of XP.
• Progressive presenile dementia is a potential, albeit rare, manifestation of XP.

Implications:

• This finding expands the spectrum of known neurological complications associated with Xeroderma pigmentosum.
• It underscores the importance of considering XP in the differential diagnosis of early-onset dementia.
• Further research is warranted to elucidate the potential link between XP and neurodegenerative processes like Alzheimer's disease.