Fig. 2

Clinical course of the lesions as seen on diffusion-weighted magnetic resonance images on the day of admission (1a–1c), at 8 days after admission (2a–2c), at 13 days after surgical aspiration (3a–3c), and at 4.5 months after onset (4a–4c). Very hyperintense lesions were revealed in the right occipital lobe (1a–4a), left occipital lobe (1b–4b), and left parietal lobe (1c–4c) on the day of admission (1a–1c). These lesions all enlarged before surgical aspiration (2a–2c). The left occipital lesion disappeared immediately (3b), and the other lesions reduced after surgical aspiration (3a, c) and eventually disappeared (4a, c)