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ethmoid sinus |
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ethmoid sinus, n one of the facial cavities, located beneath the nasal bridge, through which air flows. ethmoid 1. sievelike; cribriform. 2. the ethmoid bone. ethmoid bone the sievelike bone that forms a roof for the nasal fossae and part of the floor of the rostral cranial fossa. See also Table 10. ethmoid sinus see concha. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Noncontrast computed tomography (CT) of the paranasal sinuses demonstrated extensive disease in the fight maxillary sinus, fight ethmoid sinus, and fight sphenoid sinus along with destruction of the lamina papyracea, displace ment of the globe, and erosion of the cribriform plate (figure). 1) Most choanal polyps arise in the maxillary sinus; on rare occasions, one will originate in the sphenoid or ethmoid sinus. Malignant tumors of the ethmoid sinus account for a low percentage of head and neck cancers. |
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