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Figure 1: Initial magnetic resonance imaging and magnetic resonance angiography. (a) The axial diffusion-weighted image showed hyperintensity at the right caudate head caused by acute infarction. (b) The serpentine high-signal intensity in the pre- and post-central gyrus was observed in fluid-attenuated inversion recovery, and (c) a low-signal intensity was observed in the susceptibility-weighted imaging, which was a specific finding of cortical subarachnoid hemorrhage. (d) Magnetic resonance angiography showed normal cerebral arteries

Figure 1: Initial magnetic resonance imaging and magnetic resonance angiography. (a) The axial diffusion-weighted image showed hyperintensity at the right caudate head caused by acute infarction. (b) The serpentine high-signal intensity in the pre- and post-central gyrus was observed in fluid-attenuated inversion recovery, and (c) a low-signal intensity was observed in the susceptibility-weighted imaging, which was a specific finding of cortical subarachnoid hemorrhage. (d) Magnetic resonance angiography showed normal cerebral arteries