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paranasal sinus |
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paranasal sinus [¦par·ə¦nā·zəl ′sī·nəs] (anatomy) Any of the paired sinus cavities of the human face; includes the frontal, ethmoid, and sphenoid sinuses. 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). The Task Force defines chronic rhinosinusitis (CRS) as a group of disorders characterized by inflammation of the mucosa of the nose and paranasal sinuses of at least 12 consecutive weeks in duration. CT of the paranasal sinuses revealed a large soft-tissue opacity in the nasopharynx (figure 1, A) that had its origin in the left sphenoid sinus (figure 1, B). |
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