Patient 5. Patient 5. Initial axial, half cut, and magnified MR images of a 39-year-old man with spontaneous intracranial hypotension who presented with.

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High-signal-intensity lesions on T2-weighted MR images

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Presentation transcript:

Patient 5. Patient 5. Initial axial, half cut, and magnified MR images of a 39-year-old man with spontaneous intracranial hypotension who presented with a 1-month history of orthostatic headache, nausea, vomiting, and diplopia. Supportive treatment resolved the symptoms. A, T1-weighted image showing diffusely thickened dura mater as isointense. Subdural lesions are unclear. B, T2-weighted image showing that bilateral subdural effusion/hematomas could not be discriminated from CSF. C, T1-weighted image with gadolinium clearly showing diffuse pachymeningeal enhancement. D, FLAIR image showing diffuse pachymeningeal hyperintensity (arrowheads) and very thin bilateral subdural effusion/hematomas in the frontal region (arrow). M. Tosaka et al. AJNR Am J Neuroradiol 2008;29:1164-1170 ©2008 by American Society of Neuroradiology