Abstract
Idiopathic intracranial hypertension (IIH) is a headache syndrome with raised CSF pressure in the absence of an intracranial mass lesion. Though earlier confined to excluding intracranial lesions, magnetic resonance imaging (MRI) in recent years has been shown to identify intracranial changes from prolonged raised CSF pressure, suggestive of IIH. We present the MRI and TOF (time-of-flight) venography findings involving the orbit, sella tursica and cerebral venous structures in a 45-year-old lady with IIH and illustrate their reversibility ("flip-flop") following CSF drainage. Our case highlights the role of imaging in evaluation and follow-up of patients with IIH, without the need for repeated lumbar punctures to monitor pressures.
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This is an open-access article distributed under the terms of the
Creative Commons Attribution-Non Commercial-No Derivatives License, which
permits unrestricted reproduction and distribution, for non-commercial
purposes only; and use and reproduction, but not distribution, of
adapted material for non-commercial purposes only, provided the original
work is properly cited.
