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Washington University Experience | BASIC PROCESSES | Arachnoid Fibrohyaline Plaques | 7A1 (Case 7) Fibrohyalin bone
This focus (arrow) in the cerebral hemispheric leptomeninges was an incidental finding at autopsy. Most fibrohyaline plaques are found involving the the spinal cord leptomeninges not hemispheric and only rarely contain bone.