My brother ct- pns shows .pansinusitis and sinonasal polyposis with compromise of bilateral maxillary ostia, osteo meatal units, right front nasal and bilateral sphenoethmoid recesses. There is projection of polypoidal soft tissue densities into bilateral nasal cavities and middle meat. Suspicious erosions noted involving some of the ethmoid air cell walls and floors of both sphenoid sinuses. * 's' shaped nasal septum with a bony nasal spur on the right. * bilateral inferior turbinate hypertrophy.