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Figure Radiographic and histopathologic findings (A) Brain MRI at presentation shows multiple areas of T2 hyperintensity in the mesial temporal lobes,

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Presentation on theme: "Figure Radiographic and histopathologic findings (A) Brain MRI at presentation shows multiple areas of T2 hyperintensity in the mesial temporal lobes,"— Presentation transcript:

1 Figure Radiographic and histopathologic findings (A) Brain MRI at presentation shows multiple areas of T2 hyperintensity in the mesial temporal lobes, basal ganglia, left thalamus, hypothalamus, optic chiasm, right cerebella, and brainstem. Radiographic and histopathologic findings (A) Brain MRI at presentation shows multiple areas of T2 hyperintensity in the mesial temporal lobes, basal ganglia, left thalamus, hypothalamus, optic chiasm, right cerebella, and brainstem. As the patient clinically deteriorated, her MRI showed expanding areas of T2 hyperintensity and contrast enhancement. With the completion of plasma exchange there was reduced contrast enhancement. The top row is T2 fluid-attenuated inversion recovery sequence and the bottom row is T1 sequence post gadolinium. (B–E) Moderate (B, C) and high-power (D, E) images of hematoxylin & eosin–stained sections show prominent perivascular lymphocytic infiltrate (black arrows) and scattered intraparenchymal lymphocytes (yellow arrows). There are scattered activated microglia with elongated comma-shaped nuclei (black arrowheads) and numerous reactive astrocytes with abundant star-shaped cytoplasm (yellow arrowheads). James P. Orengo et al. Neurol Neuroimmunol Neuroinflamm 2015;2:e101 © 2015 American Academy of Neurology

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