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Fig 3. Patient 8. Chronologic FLAIR and T1-weighted MR images of a 47-year-old woman with spontaneous intracranial hypotension. She had a 1-week history of orthostatic headache. Lumbar epidural blood patch resolved the symptoms. A, Initial FLAIR image showing diffuse pachymeningeal hyperintensity (arrowheads). B, Second FLAIR image taken 1 week after completely effective blood patch showing thickened diffuse pachymeningeal hyperintensity (arrowheads) and partial subdural effusion/hematomas (arrows). C, Follow-up FLAIR image showing disappearance of the diffuse pachymeningeal hyperintensity and subdural effusion/hematomas. D, Initial T1-weighted image with gadolinium showing DPME (arrowheads). E, Second T1-weighted image taken 1 week after effective blood patch showing disappearance of DPME (arrowheads) and partial subdural effusion/hematomas (arrows). F, Follow-up T1-weighted image showing disappearance of the DPME and subdural effusion/hematomas.
