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The right maxillary sinus and bilateral frontal sinuses are completely opacified. There is a small area of soft tissue attenuation in the posterior maxillary sinus and an even smaller area on the anterior wall. The right sphenoid sinus is clear although there is a soft tissue density projection at the superoanterior wall of the left sphenoid sinus. The right agger nasi is opacified.
There is soft tissue swelling over the forehead, under which the frontal bone contains a small lytic defect consistent with possible osteomyelitis. Findings are suggestive of sinusitis with Pott puffy tumour.