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Case 1: Upper left: Macroscopic section. Note the clear corticomedullary junction in the area without gyral swelling despite the presence of a subarachnoid clot (arrowhead). Upper and lower right: Microscopic section of an area where the subarachnoid clot is not adhered to the pia mater. Neither cytotoxic edema nor neuronal death is observed, indicating normal brain tissue.
