Abstract
The development of the supraglottic cancer generally takes place by way of glandular tissues. This way of development can be understood from the rapidness of tumor development and such development at the base of the epiglottis as well as at the false vocal cord which are rich of glandular tissues.
At the anterior commissure the development of cancer also comes about, as BRIDGER reports, via glandular tissues. On the contrary the development of cancer in the subglottic region takes place not likely by way of glandular tissues, as this region consists mainly of fibrous and muscular tissues. Even in the subglottic region beneath the anterior commissure apts to occur via glandular tissues.
In consideration of these ways of the development of the cancer of the larynx via glandular tissues the transconioscopy should not be practiced in cases of tumors or ulcers at the anterior commissure, it can be, however, taken place in cases in which the mobility of the vocal cord is unilaterally disturbed.
