Scanning electron microscopic studies on blood vessels in cancer of the larynx.

The injection replication method was used in a study of the vascular system in cancer of the larynx. Following maceration, clean microcorrosion casts of the blood vessels of larynx cancer were examined in a scanning electron microscope (SEM). The effective filling of the whole vasculature, including its finest capillaries, makes it possible to obtain really three-dimensional pictures of the tumor blood vessels in the SEM. These SEM pictures allow a more detailed and profound analysis of the behavior and arrangement of blood vessels in three basic, angioarchitectonically differentiated zones of the tumor.