[Labelling animal vascular endothelial cells with Evonymus europaeus lectin]

Evonymus europaeus Agglutinin (EEA) marks some vascular endothelial cells in animal as in man. Bindings is identical in organs frezen or fixed by paraformaldehyde-lysine-periodate and embedded in paraffin. Monkey, swine, ox, sheep, dog, have positive cells which are not shown in rabbit, rat, mouse or hen. But monkey is the only animal to show an endothelial dimorphism with a topography analogous to the one revealed by UEA1 in man.