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Widespread Miliaria Crystallina in a Newborn with Hypernatremic Dehydration



Miliaria, which is extravasation of sweat into the epidermis and dermis due to sweat duct obstruction, is a commonly seen dermatologic disorder in newborns. We present a case of extensive, widespread miliaria crystallina that developed in a newborn during treatment of severe hypernatremic dehydration. A possible mechanism could be the destruction of sweat ducts with excretion of sweat with high levels of sodium.