CT shows a toothlike bony structure with a pulp cavity in the hard palate which extends to the right inferior nasal cavity (ectopic tooth). There is well-defined curvilinear calcified/ossified lesion suggestive of a rhinolith at the right inferior nasal cavity.
There is also almost complete obliteration of the right frontal sinus, right ethmoid air cells and right maxillary sinus with soft tissue attenuation, possible fungal sinusitis or sinonasal polyposis.
The nasal septum deviated to the left.
No evidence of bony destruction.