PEDIATRICS Vol. 86 No. 4 October 1990, pp. 649
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Bacterial Flora of "Normal" Sinuses

L. Karla Arruda MD1, Dirceu Solé MD1, L. M. Weckx MD1, Charles K. Naspitz MD1, and Igor M. Mimica MD2

1 Paulista School of Medicine, Såo Paulo, Brazil
2 Santa Casa Medical Sciences School, Såo Paulo, Brazil

In Reply.—

In our opinion, the nonsterility of the normal maxillary sinuses has not been resolved completely, in part because of the obvious difficulties in performing maxillary sinus punctures in healthy individuals. We have recovered high titers of bacteria in sinus aspirates of 28.6% of our patients with normal maxillary sinus x-rays. However, all the children in our study had chronic tonsillitis and/or adenoids enlargement, and therefore our results only apply to children with those underlying conditions.