xp sun disease

Updated per 2024 evidence base (including guidelines from the National Organization for Rare Disorders [NORD], American Academy of Dermatology [AAD], European Reference Network for Rare Skin Diseases [ERN-SKIN], and recent peer-reviewed literature in Journal of the American Academy of Dermatology, Nature Reviews Disease Primers, and Human Mutation). 1. Disease Overview & Pathophysiology Xeroderma pigmentosum (XP;…