PMC6702857_01
Brain magnetic resonance imaging demonstrating characteristic findings of stroke-like migraine attacks after radiation therapy syndrome. (a) Fluid-attenuated inversion recovery image demonstrates insular and temporal T2 hyperintensities near the site of prior radiated tumor, with corresponding gyriform enhancement on postcontrast T1-weighted axial image (b) and expected lack of abnormalities noted on diffusion-weighted (c) and perfusion (d) images. Posttherapy imaging at 10 days demonstrates improved signal abnormalities on (e) fluid-attenuated inversion recovery and reduced enhancement on (f) postcontrast T1-weighted sequences.
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F1
No corresponding diffusion restriction or increased perfusion was identified on diffusion-weighted imaging or perfusion imaging, respectively [Figure 1]. The patient's symptoms resolved within 10 days, and repeat imaging demonstrated significant improvement in the FLAIR-signal and gyriform enhancement [Figure 1].