Necrotizing fasciitis as a lethal complication of peritonsillar abscess.

Abscesses of the peritonsillar region rarely lead to serious complications. Incision and drainage, antibiotic therapy, and subsequent tonsillectomy is the accepted method of treatment. Two cases of fatal necrotizing fasciitis following peritonsillar abscess are presented. The entity of necrotizing fasciitis in the head and neck is discussed with respect to its presentation, diagnosis, and treatment.