Placas máculonoduliformes hiperpigmentadas pruriginosas en ni？o de dos a？os de edad

a 2-year old male patient with multiple nodular and brownish itchy macules and patches, located at the back of the trunk was received medical attention at a children′s hospital. frequent flares and incomplete remissions with blister and weal outbreaks after sun exposure and hot water baths were the rule. the distinctive cutaneous lesions as well as histopathological findings confirm urticaria pigmentosa.