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Clinical Spectrum of Xeroderma Pigmentosum: An Observational Study
Usha Sri Akkineni1, Dilip Chandra Chintada1, Kirankanth Vudayana1
1Dermatology, Venereology and Leprosy, Great Eastern Medical School and Hospital, Srikakulam, IND.
Cureus
|November 10, 2025
Summary
Xeroderma pigmentosum (XP) is a rare genetic disorder affecting DNA repair, leading to diverse symptoms like skin issues, neurological problems, and a high risk of aggressive cancers. Early diagnosis and sun protection are crucial for managing XP and improving patient outcomes.
Area of Science:
- Genetics and Molecular Biology
- Dermatology
- Oncology
Background:
- Xeroderma pigmentosum (XP) is a rare genetic disorder characterized by defective DNA repair mechanisms, primarily nucleotide excision repair.
- This impairment leads to increased sensitivity to ultraviolet (UV) radiation and a significantly higher risk of developing various cancers.
- XP can manifest with a range of cutaneous, ocular, neurological, and systemic complications.
Purpose of the Study:
- To document and analyze the varied clinical presentations of Xeroderma pigmentosum (XP).
- To focus on mucocutaneous symptoms, associated malignancies, and systemic involvement in XP patients.
- To provide insights into the comprehensive clinical spectrum of this rare condition.
Main Methods:
- A prospective observational study involving 10 clinically diagnosed XP patients over 12 months.
- Comprehensive data collection including patient history, consent, and detailed dermatological, ophthalmic, neurological, and systemic examinations.
- Analysis of clinical findings, focusing on cutaneous manifestations, neurological and ocular involvement, and types of malignancies detected.
Main Results:
- The study included 6 males and 4 females, with 70% showing onset before one year of age.
- Common cutaneous findings included poikiloderma (100%), freckles (80%), and xerosis (80%).
- Significant ocular findings were photophobia (70%) and cataracts (50%), with 20% experiencing neurological involvement. A high incidence of mucocutaneous malignancies (e.g., basal cell carcinoma, squamous cell carcinoma) and other cancers was observed.
Conclusions:
- Xeroderma pigmentosum (XP) presents with a broad spectrum of clinical features, including pigmentary abnormalities and aggressive cancers.
- Early diagnosis, rigorous cancer screening, diligent sun protection, and genetic counseling are essential for improving the quality of life and survival rates in XP patients.
- This study highlights the critical need for comprehensive management strategies tailored to the diverse manifestations of XP.
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