[Endoscopic B-mode ultrasonography in the diagnosis of head-and-neck tumors].

Examination of 40 patients with malignant laryngeal and/or pharyngeal tumours shows the possibility of utilising endoscopic B-mode-sonography in ENT. The currently available devices enhance diagnostic certainty of the established radiographic methods only in cases involving oropharyngeal or certain recurrent tumours and blood vessel infiltration. The pros and cons of endoscopic ultrasonography as well as case studies are discussed.