erythromelalgia

erythromelalgia /erith′rōmilal″jə/ [Gk, erythros + melos, limb, algos, pain] , a rare disorder characterized by a paroxysmal dilation of the peripheral blood vessels. It occurs bilaterally, usually in the extremities, and is associated with burning, redness of the skin, and pain. −erythromelalgic, adj.