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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f15_41_16018

©2013 UpToDate ® Print Email Raynaud phenomenon Panel A shows sharply demarcated pallor in several fingers resulting from the closure of digital arteries. Panel B shows digital cyanosis of the fingertips resulting from vasoconstriction in the thermoregulatory vessel in the skin. Courtesy of Fredrick M Wigley, MD.