Published online December 31, 2007
PEDIATRICS Vol. 121 No. 1 January 2008, pp. e203-e207 (doi:10.1542/peds.2006-1940)
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EXPERIENCE & REASON

Not Everything in the Maxillary Sinus Is Sinusitis: A Case of a Dentigerous Cyst

Richard Haber, MA, MD, FRCPS

Department of Pediatrics, McGill University, Montreal, Quebec, Canada

ABSTRACT

A 4-year-old girl presented to a medical clinic with a painless right facial swelling. The treating physician ordered a radiograph of the sinuses and received a report of "maxillary sinusitis." After appropriate antibiotic treatment, the facial swelling increased, and the mother took the child to her community pediatrician. After a period of observation and additional imaging, the diagnosis of dentigerous cyst was made. After appropriate surgical intervention, the cyst was removed, and over the ensuing 6 weeks the facial swelling gradually diminished. Dentigerous cysts, although uncommon, need to be considered in the differential diagnosis of children with painless facial swelling.

Key Words: ambulatory care • community pediatrics • diagnostic errors • sinus disease

Accepted Jun 24, 2007.