Fig. 7

48-year-old female with long standing nasal congestion and rhinorrhoea. Coronal (a) and axial (b) bone window CT images demonstrating extensive sinonasal polyposis with extension into the nasopharynx. Bilateral involvement is suggestive of benign disease. Note the characteristic rounded contours (arrows) which are very suggestive of polyposis. There is also complete opacification of the maxillary sinuses (MS) and ethmoid air cells (EAC)