FIG 7. Electron microscopy findings in a type 1 lesion in a cat brain from group 1, which was treated with triolein (original magnification x5000). The huge intravascular fat vacuole (F) distends the lumen and compresses the endothelial wall. The endothelial wall (arrows) is partly disrupted. Widening of the perivascular interstitial space (asterisks) is mild. Bar indicates 1 µm.