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Prevalence of incidental findings in paranasal sinus in brain and orbital CT scans in pediatric patients

Adriano Ferreira da Silva, José de Arimatéia Batista Araújo Filho, Lorena Elaine Amorim Pinto, Iluska Almeida Carneiro Martins de Medeiros, Cláudio Campi de Castro


In emergency services a significant amount of pediatric patients undergo
a brain or orbit CT scans for suspicion other than sinusitis. Assuming this
premise, this study was held to show the incidental findings of the paranasal
sinuses of children with nonspecific symptoms such as fever, headache and
vomiting that underwent brain or orbits CT scans, without the initial suspicion of sinusitis. In a retrospective study, we evaluated 70 CT scans of the brain
and orbits of children between 0 and 12 years. The incidental findings of the
paranasal sinuses occurred in 32 cases (45.7%). Mucosal thickening was the
most common incidental finding, being observed in 35% of patients, followed by
complete opacification observed in 28% of cases and incomplete opacification
observed in 28% of patients. Bilateral involvement occurred in 78% patients.
The sinuses most frequently affected were the maxillary sinus followed by
ethmoid sinuses. The abnormalities were more severe in children under the
age of three years. The prevalence of incidental tomographic abnormalities in
patients without an initial diagnosis of sinusitis is high. The predominance of
these findings are mild abnormalities.


Achados incidentais; Tomografia; Seios Paranasais.

DOI: http://dx.doi.org/10.4322/acr.%25y.26062

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