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(A, B) Magnetic resonance imaging of a 20-year-old man with cerebral venous thrombosis. Reverse diffusion weighted image (DWI)-fluid attenuated inversion recovery (FLAIR) mismatch is identified, which shows the more precise high-intensity area in FLAIR (B, arrowheads) than in DWI (A, arrows), of the bilateral thalamic lesions. (C) Computed tomography venography showed the absence of contrast effect as the result of occlusion of the straight sinus (arrowheads).
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Magnetic resonance imaging (MRI) showed the more precise high-intensity area in fluid attenuated inversion recovery (FLAIR) than in diffusion weighted image (DWI) of the bilateral thalamic lesions (Figure 1A, arrows; Figure 1B, arrowheads). Computed tomography venography revealed occlusion of the straight sinus (Figure 1C, arrowheads).