Abstract
Objective To analyze the magnetic resonance imaging （ MRI ） appearances of spontaneous intracranial hypotension syndrome （ SIHS） ,in order to improve the understanding of this disease .Methods The clini-cal data of 7 patients with SIHS confirmed by lumbar puncture were retrospectively analyzed .MRI was performed in all cases,in which there were 6 cases with contrast-enhanced MRI.Results All of them showed diffusely thickening of dural.6 cases with brain contrast-enhanced MRI demonstrated linear ,non-nodular and diffusely dural enhancement . The dilation of sinus and great vein were observed in 5 cases,subdural hydroma in 2 cases,brain sagging in 3 cases, pituitary gland plumpness in 2 cases,subdural hematoma in 1 case and 1 case with linear spinal dural enhancement . Conclusion The MRI manifestations of SIHS are characteristic ,and it will be helpful for the diagnosis by combining clinical data. Key words: Intracranial hypotension; Syndrome; Magnetic resonance imaging; Diagnosis
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