ethmoidal air cell

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.
References in periodicals archive ?
A CT scan revealed a large right maxillary antral mass, with areas of radiolucency and radiopacity, extending into the right nasal cavity and ethmoidal air cells (Fig.
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.
Endoscopic Balloon Dilation Sinuplasty Including Ethmoidal Air Cells in Chronic Rhinosinusitis, Annals of Oto, Rhin and Lary 118(12):881-886 (2009).