- A dictionary of medical eponyms

Raynaud's sign

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A condition marked by symmetrical cyanosis of the extremities with persistent, uneven, mottled blue or red discoloration of the skin of the digits, wrists, and ankles and with profuse sweating and coldness of the fingers and toes.

Description

A condition marked by symmetrical cyanosis of the extremities with persistent, uneven, mottled blue or red discoloration of the skin of the digits, wrists, and ankles and with profuse sweating and coldness of the fingers and toes. Can occur when a spasm of the blood vessels is caused by exposure to cold, by emotional stress, or other factors.

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