and above by the lower bony portion of ethmoid sinuses (E). A narrowing in this critical area can cause sinusitis. The septum (S) deviates slightly to right side without obstructing the ostium.
The four paranasal sinuses (maxillary, frontal, ethmoid and sphenoid) develop as outpouchings of the nasal mucosa. They remain connected to the nasal cavity via narrow ostia with a lumen diameter ...
Fungal cultures contained Curvularia. Axial CT scan through the ethmoid sinuses revealing complete opacification of the right anterior and posterior ethmoids as well as the right sphenoid sinus.
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 ...