Abstract
It has been proposed that susceptibility-weighted imaging is a sensitive magnetic resonance imaging (MRI) technique for identifying white matter (WM) pathologic changes involving demyelination and iron accumulation. We identified the tree silhouette-like configuration with a paramagnetic phase shift in the frontal subcortical WM lesions of 4 patients with adult-onset leukoencephalopathy with axonal spheroids and pigmented glia who underwent 3T MRI. According to our postmortem 7T MRI and histologic correlation study to investigate the origin of the susceptibility-related phase contrast, changes in the subcortical WM architecture and central WM loss with the relative preservation of iron-rich U-fibers may contribute to the paramagnetic susceptibility.
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