The oropharynx affected by cancer is subject to radiation, surgical and combined treatment. In stage IIIb author practices resection of the oropharynx by means of posterolateral pharyngotomy. This provides an adequate approach to the lesion area (the root of the tongue, vallecules, posterior and lateral walls of the pharynx) to perform ablastic resection of the oropharynx with radical dissection of cervical fat.