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a form of hydrocephalus associated with otitis media and thrombosis of one or both sigmoid sinuses of the dura, characterized by marked increase in cerebrospinal fluid pressure.
idiopathic intracranial hypertensionA neurological disorder characterised by an idiopathic increase in intracranial pressure in the absence of organic disease; it is more common in young women, especially if obese.
Headache, nausea, vomiting, pulsatile tinnitus, double vision and other visual symptoms; with time, swelling of the optic disc and blindness.
Brain scan and a lumbar puncture to exclude organic disease.
Acetazolamide, or surgery to relieve the pressure.