| Medical and surgical treatment of peritonsillar, retropharyngeal and parapharyngeal abscesses. |
| Parapharyngeal vagal neurilemmoma extending to the jugular foramen. |
| The incidence of retropharyngeal abscess after Laryngeal Mask Airway insertion is rare, while the extension of the abscess into the parapharyngeal space is of greater rarity. |
| Anteriorly, it extended up to the epiglottic base in the parapharyngeal space. |
| The infection may spread to involve the parapharyngeal or retropharyngeal spaces with complications including mediastinitis and septic thrombophlebitis. |
| We report a rare case of necrotizing sialometaplasia of the right lateral nasopharynx with extension into the right parapharyngeal space in a 39-year-old man. |
