PTA usually arises as a complication of an untreated or partially treated episode of acute tonsillitis. The infection, in these cases, spreads to the peritonsillar area (peritonsillitis). This region comprises loose connective tissue and is hence susceptible to formation of an abscess. PTA can also occur de novo. Both aerobic and anaerobic bacteria can be causative. Commonly involved aerobic pathogens include Streptococcus, Staphylococcus and Haemophilus. The most common anaerobic species include Fusobacterium necrophorum, Peptostreptococcus, Prevotella species, and Bacteroides.
complications of Tonsillitis
complications of Pharyngitis
medical cause of Tonsillitis
medical cause of Sinusitis
medical cause of Epiglottitis
complications of Lemierre's syndrome
causes of Tonsillitis
medical cause of Conjunctivitis