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FIG 2. Case 2: ISCH.
A, Sagittal T2-weighted MR image shows ventral displacement of the spinal cord at the T5–T6 level (arrowheads).
B, Axial T2-weighted MR image at the level of the cord herniation shows anterior cord displacement and loss of the anterior subarachnoid spaces. Loss of phase coherence is responsible for the dark signal in the dorsal subarachnoid space.
C, CSF velocity curve measured in the posterior subarachnoid spaces at the level of the herniation shows a normal CSF velocity pattern. A posterior arachnoid cyst was considered unlikely.
D, Postoperative sagittal T2-weighted MR image shows normal location of the spinal cord.
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