frontal sinus


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to frontal sinus: Sphenoid sinus

frontal sinus

[¦frənt·əl ′sī·nəs]
(anatomy)
Either of a pair of air spaces within the frontal bone above the nasal bridge.
References in periodicals archive ?
In adults, it is most commonly observed in the frontal sinus with a rate of 60-65%.
Therefore, the frontal sinus, ethmoid and mastoid cells equilateral to brain hemiatrophy get larger, the squama of the frontal bone becomes thicker and large sphenoid wing and petrous ridge elevate.
3%) Table 2: Technique for CT of Paranasal Sinuses (n=30) Imaging Imaging Plane Parameter Axial (n=30) Coronal (n=20) Patient position Supine Prone Gantry angulation Parallel to IOML Perpendicular to IOML Extent to study From hard From anterior palate through frontal sinus frontal sinus to post.
sup][16],[17],[18],[19],[20],[21] In this study, only one patient with FLA Type II had transient CSF leakage after operation because of a large frontal sinus, which was resolved after 10 days of continuous lumbar drainage.
Through the frontal sinus access, a caudal observation was made of this region, the nuchal diverticulum, the caudal region of the eyeball, but the exploration was complicated by the presence of large numbers of intrasinusal lamellae (Figure 3C).
The present paper discusses about amputation of horn by flap method, as a salvage treatment for horn cancer and for horns fractured at the base or those in which, frontal sinus was exposed.
Wide right fronto-orbital craniectomy en-bloc with right frontal sinus, lateral orbital wall and zygomatic bone partially was performed, also at 2 cm from tumor margins on CT-scan (Figure 5).
However, the most common mucocele site in patients who had previously undergone ESS, as opposed to the Caldwell-Luc procedure, was the frontal sinus (50.
The frontal sinus is formed by pneumatisation of the frontal recess into the frontal bone.
Otolaryngologists from North America, Brazil, and Australia offer 33 chapters containing endoscopic photos, illustrations, and instructions for procedures, as well as information on anatomy and surgical indications, instrumentation, pitfalls, and preoperative and postoperative considerations, for the areas of nasal surgery, primary endoscopic sinus surgery, revision endoscopic sinus surgery for inflammatory disease, orbital surgery, sinonasal tumors, skull base reconstruction, anterior and central skull base approaches, and combined endoscopic and open approaches for the frontal sinus, ranging from septoplasty and sphenoethmoidectomy to extended frontal sinus procedures and endoscopic craniofacial resections.
Communication occurs through the frontal nasal duct, between each frontal sinus and ethmoidal infundibulum which, in turn, opens into the semilunar hiatus in the mid-nasal meatus (MOORE; DALLEY, 2007).