Tumours of the parapharyngeal space.
D000038:Abscess / Q000601:surgery; D006801:Humans; D010608:Pharyngeal Diseases / Q000601:surgery; D010610:Pharyngeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed