In 170 laryngectomized the radiologic profile pictures of the hypopharynx during deglutition were compared with X-ray pictures during phonation of the vowel ‘a’. Removing or leaving the hyoid bone does neither affect the incidence of recess formation northeir size. In most cases a cicatricial, transversal fold was found. It ran below the recess in the frontal plane and was very much alike an epiglottis. There was a statistically significant correlation between the substitute speech quality and the behaviour of hypopharynx recesses during phonation. In the patients with pharyngeal speech and whisper, the number of deep recesses was higher than that of shallow ones.