We report 6 cases of black Senegalese boys with xeroderma Pi,pigmentosum. T
hey were between 2 and 16 year-old and presented features of hypersensitivi
ty to UV (keratosis, lentigines, poikilodermia and photophobia). Our cases
were remarkable by the early occurrence of squamous cell and basal cell car
cinoma located in photoexposed sites causing the death of 5 of them. Xerode
rma pigmentosum must be considered ns the first preneoplastic genodermatosi
s.