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Patient 18 had typical orthostatic headache.

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Presentation on theme: "Patient 18 had typical orthostatic headache."— Presentation transcript:

1 Patient 18 had typical orthostatic headache.
Patient 18 had typical orthostatic headache. CSF pressure was zero. Thoracic spinal MR imaging showed irregular high signal intensity along the nerve root sleeve. He underwent epidural blood patch, and his symptoms completely disappeared. A and B, Axial fat-saturated T2-weighted MR images show irregular high signal intensity (arrows) along the nerve root sleeve at the T1 level. C, Radioisotope cisternogram shows extradural tracer accumulation (arrows) at the high thoracic spine consistent with the MR imaging finding. A. Watanabe et al. AJNR Am J Neuroradiol 2009;30: ©2009 by American Society of Neuroradiology

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