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Headache in intracranial hypotension


We describe the headache characteristics of two patients with intracranial hypotension (IH) and correlate the magnetic resonance imaging (MRI) pattern to the clinical aspects of this type of headache. The first case was that of a patient with spontaneous IH, whereas the second patient had IH following rhinorrhoea. Cerebral computed tomography (CT) performed at presentation of symptoms was normal in both patients. Cerebral MRI in the first case showed meningeal contrast enhancement and an MRI pattern consistent with a subdural hygroma, while in the second case there was only a mild meningeal thickening. The symptoms improved spontaneously in both cases in about 2–3 months, confirming that invasive manoeuvres are not mandatory in these patients.

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Lia, C., Bottacchi, E., Brusa, A. et al. Headache in intracranial hypotension. J Headache Pain 4, 164–167 (2003).

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