FIG 5. Histologic assessment of neuronal damage in the piriform cortex and amygdala 12 hours after pilocarpine-induced seizures.

A, Cresyl violet–stained section from a control animal. Note dark neuronal staining in layers II-III and in the nuclei of the amygdala.

B, There is marked neuronal loss and vacuolization of layer II-III in the piriform cortex (arrows).

C, Silver degeneration staining confirms the lack of neuronal loss in this section from a control animal.

D, Twelve hours after the induction of SE, there are numerous darkly stained neurons in layer II-III of the piriform cortex (arrowheads) and some nuclei of the amygdala. Arrows indicate widespread loss of pyramidal cells in the piriform cortex. (Scale bar: 100 microns)