Objectives: To determine the incidence and severity of sinus abnormalities
in children undergoing computed tomography (CT) of the sinuses for suspecte
d chronic sinusitis. To compare these findings with abnormalities noted on
random CT scans. Methods: Sixty CT scans, performed for evaluation of sinus
disease in symptomatic children aged 2-12, were compared with 50 CT scans
of children aged 2-12 of the orbits or sinuses obtained for indications oth
er than sinusitis. A staging system was applied to assess the severity of a
bnormalities. Results: Mucoperiosteal thickening was present in 60% of symp
tomatic and 46% of random CT scans (logistic regression, P = 0.144). Childr
en aged 2-4 and 9-12 had an increased prevalence of abnormalities in both g
roups, although these findings were not statistically significant (logistic
regression, P = 0.817). Early stage sinus disease was present in the major
ity of random (96%) and symptomatic (85%) children. Conclusions: There is a
high incidence of mucoperiosteal thickening in the paranasal sinuses of ch
ildren. CT scans of the sinuses should be obtained from children who are be
ing considered for sinus surgery after failing the appropriate medical ther
apy. Decisions regarding the need for sinus surgery should not be solely ba
sed on imaging abnormalities. (C) 1999 Elsevier Science Ireland Ltd. All ri
ghts reserved.