| 14 cases of patients with spontaneous intracranial hypotension in our hospital were analysed. Their symptoms were all classical with headache in upright posture, partly including nausea, vomiting, vertigo, altered hearing, visual field cuts, diplopia, neck stiffness and interscapular pain. The pressure were all low by lumber puncture( 0.7Kpa). The cerebrospinal fluid contained small amount of RBC and protein increased. Cranial CT revealed limited value and subdural hygromas. MRI revealed diffuse pachymeningeal enhancement and descent of the brain. All patients were enforced recumbency and treated with large amount of fluid. Most patients recovered about 3 weeks.
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