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. 2021 Jun 17;18(6):479–485. doi: 10.30773/pi.2020.0201

Figure 2.

Figure 2.

Brain biopsy, hematoxylin-eosin stain where it is observed. A: Homogeneous eosinophilic thickening of the vascular wall. B: Eosinophilic thickening of the parietal wall with peri adventitial hemosiderin deposits (old microhemorrhage). C: Positive immune staining of β amyloid in the vascular walls (black arrow) and in plaques within the parenchyma.