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intracranial cavity

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intracranial cavity


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If the air within the intracranial cavity becomes trapped by a "ball-valve" or "inverted pop bottle" mechanism, increased intracranial pressure may cause mass effect and neurologic deterioration.
Computed tomography of the sinuses showed (1) an abnormal soft-tissue process causing expansion of the right maxillary sinus with complete opacification of the right maxillary antrum, (2) widening of the right ostiomeatal complex with mucosal thickening in the right-sided ethmoidal sinus cells, and (3) no violation of the bony wails separating the sinuses from the orbit or intracranial cavity (figure 1, A and B).
Abstract Tension pneumocephalus occurs when a continuous flow of air accumulates in the intracranial cavity and produces a mass effect on the brain.
 
 
 
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