Bacteriology of tonsil surface and core in children.

The tonsils of 97 children undergoing tonsillectomy were studied to determine the correlation between surface culture swab and culture of tonsillar core. In many cases, pathogenic organisms were found in the tonsil core, despite the fact that surface cultures revealed only normal respiratory flora. The tonsil core cultures showed a high incidence of Hemophilus influenzae and Staphylococcus aureus, which was rarely reflected on surface culture. The study indicates that pharyngeal swab cultures do not reliably reflect the presence of pathogens in the tonsil core. The value of parameters such as history of recurrent bouts of tonsillitis and presence of erythema or cryptic debris on physical examination for predicting the differential bacteriology of the tonsil is studied. The implications for treatment of children with adenotonsillar hypertrophy are discussed.