Figure 23.

A photomicrograph of a section from the frontal motor area of the cerebral cortex of a rat of group II showing some irregular darkly stained pyramidal cells with pyknotic nuclei and surrounded by haloes (arrows) others are shrunken and shows marked cytoplasmic vacuolization (crossed arrow). Some pyramidal cells appear with faintly stained cytoplasm and nuclei (arrow head). Note the presence of dilated congested blood vessels with inflammatory cells in it (curved arrow) and the red neurons (short arrow) (H&E × 400).