[Rapid method of visualizing endothelium in unfixed tissue]

An express method of visualization of endotheliocytes has been described. It is based on the combined use of vital dye-thioflavin and silver nitrate. The method requires no fixation, "häutchen" preparation and scanning electron microscopy. It is very simple, needs no special training or facilities and allows visualization of the endothelium already 2 min after the tissue is obtained.