Fig. 3

A preoperative MRI scan of the brain on November 18, 2016, showed a solitary mass in the right frontal lobe (a–c). One year later on December 25, 2017, a preoperative MRI scan of the brain showed multiple lesions in the bilateral frontal-parietal lobe (d–f). Three months after the operation, an MRI scan of the brain performed on May 3, 2018, showed postoperative changes in the bilateral frontal-parietal lobe, with gross total resection of the lesions (g–i). The MRI sequences consisted of the following: T2WI for a, d, g, and i; DWI for b, c, e, and f; and T1WI for h