Figure 14-28.

Cerebral Edema, Dog.

On the dorsal surface, gyri are swollen and flattened and sulci have become less distinct. Accumulation of extracellular fluid has caused the brain to swell, and because space within the cranial vault is limited, the brain has been pressed against the calvaria. In extreme cases, notable brain swelling can cause caudal displacement of the parahippocampal gyri and vermis of the cerebellum (see Figs. 14-59 and 14-60).

(Courtesy Drs. C.A. Lichtensteiger and A. Gal, College of Veterinary Medicine, University of Illinois.)