Nailfold capillaroscopy - Raynaud phenomenon
(Panel A) The normal nailfold capillaroscopic pattern, showing regular disposition of the capillary loops along the nailbed (original magnification 200x, M Cutolo).
(Panel B) A decreased number of loops should be considered highly specific for secondary Raynaud phenomenon and induce "desertification" of the nailbed (original magnification 200x, M Cutolo).
Reproduced from: Cutolo M, Pizzorni C, Secchi ME, Sulli A. Capillaroscopy. Best Pract Res Clin Rheumatol 2008; 22:1093. Copyright © 2008. Illustration used with the permission of Elsevier Inc. All rights reserved.
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