[Computerized tomography in studies of the larynx. Normal anatomy].

The CT picture of the normal larynx was studied in 15 volunteers free from laryngeal disorders and in 142 patients examined at the level of the neck for a variety of pathological conditions. The investigation was carried out during normal breathing and during phonation. The diagnostic importance of these two functional attitudes is stressed. Tomographic anatomy was described according to axial planes: suprahyoid, hyoid, subhyoid, supraglottic, glottic and subglottic. In addition to the laryngeal structure, the cartilaginous skeleton and the anatomical formations surrounding the larynx were also investigated. CT was found to be a very useful and accurate tool for studying the delicate structures which form the larynx.