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Example images of postmortem specimens and MR imaging that guided tissue blocking. (A) Coronal section of postmortem tissue. (B) FLAIR image with identification of pvWMH and fluid filled PVI (red arrow). (C) H&E stained tissue block corresponding to the region identified in B. Periventricular tissue was identified as tissue within 0.5 cm of the ependymal lining. Box 1 and 2 indicate examples of cortical tissue and subcortical white matter, respectively. Scale bar indicates 5 mm
