Glottic Cancer of the Free Margin and Ventricular Surface of Vocal Cord.

The authors differentiate cancer types of the glottis setting out from the free margin or the ventricular surface of the true vocal cord. The latter is considered to be a reliant clinicopathological unit starting from the dividing line of the stratified-ciliated epithelium margins, whereas the so called junctional tumor differs in its histogenesis and invasivity. They give a detailed description of intralaryngeal extension of these tumours on the basis of histopathological investigations.