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Raynaud phenomenon
(ra-noŽ)
intermittent attacks of ischemia of the fingers or toes, usually on both sides of the body at once, and sometimes on the ears
or nose; characteristics include severe pallor, often with paresthesias and pain. It is brought on characteristically by cold or emotional stimuli and is relieved by heat. The cause is usually
underlying disease or some anatomical abnormality. When the condition is idiopathic or primary it is called Raynaud disease.
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