livedo vasculitis

li·ve·do vas·cu·li·tis

hyaline degeneration of the walls of small dermal blood vessels with thrombolic occlusion seen with cryoglobulinemia or in atrophie blanche. No necrosis is seen.
Farlex Partner Medical Dictionary © Farlex 2012
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APS is characterised by typical clinical manifestations [livedo reticularis, livedo racemosa, livedo vasculitis, thromboembolic phenomena with necrosis and ulceration of the extremities, digital gangrene, purpura, and purpura fulminans] and persistent aPL positivity (at least 12 weeks apart).