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عمومی::
پرفشاری خوش خیم داخلجمجمه
Because elevated ICP is a primary characteristic of benign intracranial hyperten- sion (BIH), the pathophysiology of nontraumatic CSF rhinor- rhea and BIH may be similar.
BIH, also known as idiopathic intracranial hypertension and pseudotumor cerebri, is a syndrome of increased ICP in the absence of specific causes such as intra- cranial masses, hydrocephalus, and dural sinus thrombosis.
Clinical manifestations of BIH include headache, pulsatile tin- nitus, papilledema, and visual disturbances that include abdu- cens nerve palsy.
Most BIH patients are obese, middle-aged women.
In fact, the demographics of the spontaneous CSF leak populations are quite similar to those of the average BIH patient population,31 and in one study, 82% of spontaneous CSF leak patients had an elevated body mass index (which aver- aged 36.2).32 Thus the diagnosis of BIH must be examined in the setting of spontaneous CSF rhinorrhea.
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