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.
References in periodicals archive ?
The sinus cavity becomes acidic and hypoxic, providing an excellent growth medium for bacteria.
1) We believe that increased intrasinus pressure due to drainage obstruction may affect the venous and lymphatic drainage from the sinus cavity, leading to venule microhemorrhages while still allowing arterial blood into the sinus mucosa, further contributing to a large localized hemorrhage.
Sometimes the results are not immediate It may take 12 weeks or longer before the sinus cavity heals.
This inflammation prevents the usual clearance of bacteria from the sinus cavity, increasing the chances of developing secondary bacterial sinusitis.
1) Sellar: The sinus cavity extends posteriorly to the anterior sella turcica wall and lies under the sella floor.
Since the frontal sinus is filled with tumor, the dimensions of the frontal sinus cavity cannot be visualized.
George Trusty, 57, was alleged to have been dancing to Car Wash when an inch-long drill punctured her sinus cavity and lodged near her eye socket.
It can cause lung, nasal and sinus cavity cancers in humans,'' said Professor John R.
A blocked sinus cavity filled with mucus becomes a fine place for bacteria to grow.
ALLERGIC FUNGAL SINUSITIS (AFS): Allergic fungal sinusitis occurs when a fungus colonizes a sinus cavity and then causes allergic mucosal inflammation through an IgE response to fungal protein.
A clear image of the illuminated sinus cavity with the lighted guide wire in place was obtained (figure, D).
Busey, 53, said he is beginning radiation treatment this week after removal of a large, malignant tumor from his sinus cavity that doctors told him could have been fatal.