However, the ethmoid sinuses, which are most commonly involved ... a nasal smear may show polymorphonuclear leukocytes suggestive of infection, versus eosinophils, suggestive of allergic rhinitis.

A sinus infection, also known as sinusitis ... (frontal sinuses), several between your eyes and behind your nose (ethmoid sinuses), and two in your cheeks (maxillary sinuses), adds Glen Porter ...

While the most common etiology is an upper respiratory tract infection ... for bacterial growth resulting in bacterial sinusitis. The anterior ethmoid-middle meatal complex (osteomeatal complex ...

Anterior Ethmoidal Artery (AEA): An artery that supplies blood to the anterior part of the ethmoid bone and surrounding structures, important in sinus surgery. Computed Tomography (CT): An imaging ...