Fig. 3From: The usefulness of MDCT-myelography for patients with spontaneous intracranial hypotensionA 56-year-old man with spontaneous intracranial hypotension (case #6). a Axial MDCT-myelography imaging shows contrast leakage at the T3 level with “gray-rim sign,” which was defined as high-attenuated peripheral rim due to leaked contrast (black arrow) with central densely high-attenuated contrast inside the dural sac (white arrow). b Sagittal MDCT-myelography shows leakage of contrast media from T1 to T4 levelBack to article page