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Distal atheroembolism in rete mirabile.

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Presentation on theme: "Distal atheroembolism in rete mirabile."— Presentation transcript:

1 Distal atheroembolism in rete mirabile.
Distal atheroembolism in rete mirabile. A−D, This small arteriole is completely occluded by a lesion containing foamy macrophages (clear areas) and collagen fibers (eosinophilic in A and brown in D). The internal elastic lamina (black line in B) is intact. There are very few smooth muscle cells in the lumen of the vessel (positive immunostaining in C). A, HE staining. B, van Gieson elastic staining. C, Anti-smooth muscle actin staining. D, Collagen type IV staining. The scale bars are equal to 100 μm. Z.-S. Shi et al. AJNR Am J Neuroradiol 2009;30: ©2009 by American Society of Neuroradiology

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