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Raynaud phenomenon

   Also found in: Wikipedia 0.01 sec.
Raynaud phenomenon
Raynaud's disease Cardiovascular disease A condition characterized by vasospasm of small vessels of the fingers and toes, resulting in skin discoloration Etiology Extreme temperatures–especially cold or hot or emotional events; initially, digits involved turn white because of ↓ blood supply, then blue because of prolonged hypoxia, then red, when the blood vessels reopen, causing a local flushing


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As a result internal organs may be affected and many with systemic scleroderma are sensitive to cold and some experience a color change in their fingers or toes upon cold exposure or stress known as Raynaud Phenomenon.
 
 
 
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