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Pre-contrast sagittal and axial T1-weighted images of the brain (a, b) and spine (c, d) show hyperintensity from a T1 shortening of the paramagnetic properties of melanin. Axial post-gadolinium T1-weighted image (e) shows diffuse leptomeningeal enhancement. Axial fluid-attenuated inversion recovery image (f) reveals hyperintensity in the cerebral sulci.
