Angioma Serpiginoso

angioma serpiginosum is an uncommon acquired dermatosis of unknown origin. 90% of the cases occur in women and usually begin to manifest in childhood or adolescence. lesions consist of punctuate erythematous or purple maculae, with a serpiginous disposition, feature that gives it its name. more often it compromises the extremities, mainly the lower ones. we report a case of angioma serpiginosum in an adult man with typical lesions, of adolescence-onset, on the upper limb, following blaschko's lines.