Figure 2.

Livedo racemosa/Sneddon syndrome. Irregular livedo racemosa forming open circles to bizarre branches on buttocks (usual area of predilection) and thighs (a). Apparently normal epidermis and dermis. However, higher magnification shows an occluded artery at the dermis‐subcutis border (arrow) (b). Artery completely occluded by fibrosis and early calcification at dermal‐subcutis border (bold arrow); note that the membrana elastica interna of the artery as well as the corona of capillaries (vasa vasorum, thin arrows) are still present, which is unusual in vessels of this size (250–500 µm) and indicates a previous granulation tissue response due to inflammation and/or occluding vasculopathy (c).