PMC3638557_01
On admission, T2-weighted images (T2WIs) showed a diffuse high-intensity lesion in the right thalamus, extending into the posterior limb of the internal capsule and midbrain (a). The central part of the right thalamic lesion showed high intensity on the diffusion-weighted image, (b) and a decreased apparent diffusion coefficient (c). Both transverse sinuses showed high intensity on the diffusion-weighted image (d). T2*WI showed diminished signal and enlargement of the right basilar vein (e) and the vein of Galen (f).
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fig1
T2WI, there was a diffuse high-intensity lesion in the right thalamus, extending into the posterior limb of the internal capsule and midbrain (Figure 1(a)). The central part of the right thalamic lesion showed high intensity on the diffusion-weighted image (DWI) (Figure 1(b)), and a decreased apparent diffusion coefficient (Figure 1(c)). Both transverse sinuses also showed high intensity on the DWI (Figure 1(d)). The T2*WI showed diminished signal and enlargement of the right basilar vein (Figure 1(e)) and the vein of Galen (Figure 1(f)).
Two days after admission, magnetic resonance venography (MRV) showed an absence of flow in the inferior sagittal sinus, vein of Galen, and straight sinus (a), and a reduction of flow in the transverse sinus (b).
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Two days later, MRV showed an absence of flow in the inferior sagittal sinus, vein of Galen, and straight sinus (Figure 2(a)), and a reduction of flow in the transverse sinus (Figure 2(b)).