[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.

[Lupoid leishmaniasis].

Introduction: Due to the wide variety of clinical pictures, several terms have been used in the literature reporting cases of lupoid leishmaniasis, including chronic leishmaniasis and recurrent leishmaniasis.

Cases: We report three new cases, two of which presented the classical features, and a third one with an unusual distribution of the lesions.

Discussion: Lupoid leishmaniasis is a particular evolving form of cutaneous leishmaniasis with characteristic spreading of the initial nodule, leading to a plaque simulating discoid lupus.