frontal sinus


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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 ?
The infundibulum frontale is a funnel-shaped narrowing at the inferior aspect of the frontal sinus, extending toward the floor of the frontal sinus ostium.
Analysis showed that 18.2% (n = 6) of the 33 skulls showed complete agenesis of the frontal sinus; 9.1% (n = 3) had unilateral agenesis and 72.8% (n = 24) presented the two sinuses.
Cranial MRI studies demonstrated an irregular hyperintense lesion in T2 FLAIR and T1 FLAIR which originated from the right frontal sinus and advanced to the intracranial space, did not invade the intracerebral space, and had contrast enhancement (Figure 1).
CT scan revealed extensive sinus disease with attenuated material and erosion, involving the ethmoid, sphenoid and maxillary sinuses bilaterally along with the right frontal sinus. Erosions were noted in the right inferior orbital wall and the disease was noted to involve the inferior oblique and medial rectus muscles, pushing right optic nerve superiorly.
Identification of human remains by comparison of frontal sinus radiographs: a series of four cases.
Men outnumbered women by 50%, median age was 37 years, frontal sinus was the most common location, and all patients were symptomatic with headache, visual changes, sinusitis, pain, and proptosis/globe displacement being the most frequent symptoms.
Although the typical patient is still a young male involved in a motor vehicle accident, the rate of the most severe frontal sinus fracture--the through-and-through--decreased from 40% to just 3% from 1986 to 2002, Bradley Strong, M.D., said at the annual meeting of the American Academy of Otolaryngology--Head and Neck Surgery Foundation.
The mass demonstrated intracranial extension, with much of the posterior cortex of the left frontal sinus eroded or thinned.
The interior is excavated to form a number of irregular spaces, partially divided by bony septa and communicate with frontal sinus (Singh and Kumar, 1993).