Bilateral peritonsillar abscesses and quinsy tonsillectomy.

Two patients presented with history, symptoms, and clinical findings suggesting unilateral peritonsillar abscesses. At the time of quinsy tonsillectomy, the patients were found to have pus present in the contralateral peritonsillar spaces. These findings prompted a review of the literature to determine the actual frequency of bilateral peritonsillar abscesses and to reassess the approach to treatment of patients presenting with peritonsillar abscesses.Peritonsillar abscess frequently develops following the onset of acute tonsillitis, and it is possible that this process occurs bilaterally with the developmental stages of the abscesses being different on each side. Intensive antibiotic treatment, incision and drainage of the obvious abscess probably suppresses the development of and masks the presence of the abscess on the opposite side.Quinsy tonsillectomy has been indicated previously for patients not responding to intravenous antibiotic treatment and incision and drainage of their peritonsillar abscess. The possibility of a subclinical contralateral peritonsillar abscess being present is an additional indication for proceeding with a quinsy tonsillectomy, especially in patients who remain febrile after apparent satisfactory drainage of the clinically evident abscess.