Cyclic alternating pattern
Jan. 09, 2020
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Cerebral amyloid angiopathy (and senile plaques with amyloid cores) can be demonstrated using Congo red staining with polarization microscopy. Micrograph shows a Congo red-stained section from the brain of a patient with severe Alzheimer disease-related cerebral amyloid angiopathy. (Contributed by Dr. Jeffrey L Saver.)