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Definition of «Phenomenon, Raynaud's»

Phenomenon, RaynaudPhenomenon, RaynaudPhenomenon, RaynaudPhenomenon, Raynaud

Phenomenon, Raynaud's: A condition resulting in discoloration of fingers and/or toes when a person is exposed to changes in temperature (cold or hot) or emotional events.

The skin discoloration occurs because an abnormal spasm of the of Raynaud's phenomenon.

Raynaud's phenomenon occurs with a number of conditions including rheumatic diseases (scleroderma, rheumatoid arthritis, systemic lupus erythematosus), hormone imbalance (hypothyroidism and carcinoid), trauma (frostbite, vibrating tools), medications (propranolol/INDERAL, estrogens, nicotine, bleomycin) and, rarely, cancer.

The phenomenon is named for the French physician Maurice Raynaud (1834-1881).

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