There are two of these air cavities in your forehead (frontal sinuses), several between your eyes and behind your nose (ethmoid sinuses), and two in your cheeks (maxillary sinuses), adds Glen ...

However, plain film radiographs provide poor visualization of the ethmoid sinus due to density averaging. Plain films are therefore useful for diagnosing frontal and maxillary sinus disease but ...

When papillomas develop in your sinuses, they most commonly occur in the ethmoid sinus near your eyes and your maxillary sinus under your cheekbones. Rare cases of inverted papillomas may develop ...

Anatomy and physiology of the sinuses and sinusitis. Sinusitis is defined as an inflammation of the lining of the membranes of any of the paranasal sinuses. The sinuses are lined with ciliated ...