• Micah Hill, Neil Bhattacharyya, Theodore R Hall, Robert Lufkin, and Nina L Shapiro.
• Division of Head and Neck Surgery, University of California, Los Angeles, California, USA.
• Otolaryngol Head Neck Surg. 2004 Feb 1; 130 (2): 171-5.

ObjectivesOur goal was to determine the incidental Lund score for pediatric patients without chronic rhinosinusitis (CRS).MethodsPediatric patients with computed tomography scans of the orbit or brain were identified. Patients with a clinical history of sinonasal disorders or skeletal facial trauma were excluded. The remaining scans were scored according to the Lund-MacKay system. Pneumatization of the frontal and sphenoid sinuses was also recorded. A scaled Lund score was computed, and the mean Lund score for this normal population was determined.ResultsOne hundred ninety-two computed tomography scans were examined (mean age, 9.0 years). The frontal sinuses and sphenoid sinuses were absent in 40.1% and 1.6% of cases, respectively. The mean scaled Lund score in this pediatric population without CRS was 2.81 (95% confidence interval, 2.40 to 3.22). This result differed statistically from a score of 0 (P < 0.001). Only 37 (19.3%) patients had completely radiographically normal sinuses.ConclusionsThe mean incidental Lund score in the absence of CRS approaches 3, and this should be considered when determining the diagnostic likelihood of CRS in pediatric patients.

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