[Use of computed tomography in the diagnosis of malignant tumors of the hypopharynx and larynx].

CT is a non-invasive examination technique, which is able to demonstrate laryngeal and pharyngeal anatomy in a three-dimensional manner and give qualified information in addition to the clinical findings. In the classification of laryngeal and hypopharyngeal cancer, CT is superior to conventional radiological methods. CT complements direct and indirect laryngoscopy in showing tumour infiltration of surrounding structures.