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FIG 9. Image shows septa within dural sinuses in a 39-year-old man with normal results of an MR imaging study. Axial source image from a 3D contrast-enhanced MPRAGE image shows curvilinear septa (arrows) that have intermediate signal intensity in both transverse sinuses. The septa seen in this study were usually smooth, thin, and not limited to the center of the sinus.
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