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A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
Xeroderma pigmentosum: a retrospective case series in Zimbabwe
Midion Mapfumo Chidzonga1, Leonard Mahomva, Rudo Makunike-Mutasa
1Department of Dentistry, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe. mmchidzo@utande.co.zw
Summary
Xeroderma pigmentosum (XP) in black African patients is rare and typically severe, presenting in early childhood with significant photosensitivity and high rates of squamous cell carcinoma (SCC) on the skin, lips, and tongue. Management challenges include poor follow-up in the local environment.
Area of Science:
- Genetics and rare diseases
- Dermatology
- Ophthalmology
Background:
- Xeroderma pigmentosum (XP) is a rare genetic disorder characterized by extreme sensitivity to ultraviolet radiation.
- Clinical manifestations and management of XP can vary significantly across different ethnic populations.
Purpose of the Study:
- To describe the clinical characteristics and management strategies for black African patients diagnosed with xeroderma pigmentosum (XP).
Main Methods:
- Retrospective review of twelve black African patients with XP over a 25-year period.
- Data collected included age, gender, clinical features, treatment modalities, and patient follow-up.
- Analysis focused on the presentation and outcomes of XP in this specific demographic.
Main Results:
- The study identified 8 females and 4 males, aged 3–18 years, with a majority (9/12) presenting the severe form of XP.
- All patients exhibited early ocular involvement, including photophobia and blindness, and a high incidence of squamous cell carcinoma (SCC) on the skin, lips, and tongue.
- Marked skin photosensitivity was a consistent feature; no parental consanguinity was reported, and surgery was the primary treatment, though follow-up was challenging.
Conclusions:
- Xeroderma pigmentosum (XP) is infrequently observed in the black African population but typically manifests severely in early childhood.
- Key features include pronounced photosensitivity, photophobia, leading to blindness, and a high prevalence of SCC affecting the skin, lips, and tongue.
- Effective long-term management and follow-up of XP patients pose significant difficulties within the study's environmental context.
