Parapharyngeal abscess in children: the role of CT for diagnosis and treatment.

Parapharyngeal abscess (PPA) in children is an uncommon deep neck space infection. Computerized tomography (CT) is an important diagnostic aid. However, CT scan is not specific in differentiating an abscess from cellulitis or inflammatory edema. A retrospective review of eight children with a CT diagnosis of PPA was undertaken. In three patients an abscess was surgically confirmed. In two patients surgical exploration did not reveal an abscess and in three the infection resolved with intravenous antibiotic therapy only. Although CT is a useful diagnostic tool for PPA, surgical intervention should be based mainly on the clinical status of the patient and the non-responsiveness to i.v. antibiotic therapy.