Unless sinusitis is suspected as a possible cause of symptoms, it may go undiagnosed ... levels in the sinuses are diagnostic. However, the ethmoid sinuses, which are most commonly involved ...
About 20 percent of people with CRS have nasal polyps, which are benign growths in the nasal cavities that are thought to originate from the ethmoid ... and relieve symptoms of sinusitis.
Maybry and colleagues [34] found that there were no exacerbations of the symptoms generally associated ... Axial CT scan through the ethmoid sinuses revealing complete opacification of the right ...