FIG 6. Electron microscopy findings in a type 1 lesion in a cat brain from group 1, which was treated with triolein (original magnification x3000). Photomicrograph shows an intravascular fat vacuole (F) and defects in the endothelial wall (solid arrows). Areas of perivascular interstitial edema (asterisk) and neuropil swelling (arrowhead) are smaller than 5 µm in diameter. Open arrows represent red blood cells. Bar indicates 2 µm.