English: Computerized tomography (CT) in a coronal plane of a patient with odontogenic sinusitis demonstrating complete opacification of the right maxillary and right anterior ethmoid sinuses with associated involvement of the ostiomeatal unit. There is a periapical radiolucency of the right maxillary first molar (red circle).
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Computerized tomography in a coronal plane of odontogenic sinusitis: Right maxillary first molar periapical radiolucency (red circle), complete opacification of the right maxillary sinus and anterior ethmoid sinus with ostiomeatal unit involvement.