title: Cancer of the head and neck. Nasopharyngeal cancer. Radiologic diagnosis.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D002933:Cineradiography; D003287:Contrast Media; D003937:Diagnosis, Differential; D006801:Humans; D008722:Methods; D009302:Nasopharyngeal Diseases / Q000175:diagnosis; D009303:Nasopharyngeal Neoplasms / Q000000981:diagnostic imaging*; D014054:Tomography; D014636:Valsalva Maneuver
chemical_list: D003287:Contrast Media