[Xeroderma pigmentosum. A study in 40 Algerian patients].

Introduction: Xeroderma pigmentosum (XP) is a rate autosomal recessive disorder related to DNA repair defects. Recently, modifications of oncogenes and mutations of the p53 suppressor gene have been reported in skin tumors of XP patients. The purpose is to study, through a series of 40 patients admitted to the Dermatologic Clinic of Algiers, the characteristics of XP in Algeria.