Inflammation of the ethmoidal cells
Introduction Sieve bone cells (lat. Sinus ethmoidalis, also called Cellulae ethmoidales) are a variety of air-filled spaces in the ethmoid bone (Os ethmoidale). A distinction is made between front and rear ethmoidal cells, which form the ethmoidal labyrinth. Together with the maxillary, sphenoid and frontal sinuses, the ethmoid cells belong to the paranasal sinuses. As … Inflammation of the ethmoidal cells