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ethmoidal air cell

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ethmoidal air cell
[ethmoi′dəl]
Etymology: Gk, ethmos, sieve, eidos, form
one of the numerous small thin-walled cavities in the ethmoid bone of the skull. The cavities are lined with mucous membrane continuous with that of the nasal cavity and lie between the upper part of the nasal cavities and the orbits. Compare frontal sinus, maxillary sinus, sphenoidal sinus.


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The ethmoidal air cells consist of numerous thin-walled cavities situated in the ethmoidal labyrinth and completed by the frontal, maxilla, lacrimal, sphenoidal, and palatine bones.
[FIGURE 2 OMITTED] The right maxillary sinus, both sphenoids, and the left ethmoidal air cells were clear.
CT imaging to look for the source of aspergillosis showed inflammatory mucosal thickening of ethmoidal air cells bilaterally, 1 cm low density lesion in right lobe of the liver, and multiple nodules in right lung.
 
 
 
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