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Fig. 10 —50-year-old man with intractable nasal congestion. Coronal CT
scan of paranasal sinuses shows complete opacification of right maxillary
sinus and abnormal soft tissue extending through infundibulum on right into
right nasal cavity (arrows). CT appearance is nonspecific and could
represent polyposis or inverted papilloma. Middle meatal antrostomy has been
performed on left (asterisk).