IDH1 and neoplasm: The tumor (IDH1 negative; MGMT status unknown) recurred 8 months after diagnosis, with somnolence, dysphasia, memory impairment, right homonymous hemianopsia, right-sided body neglect, 4/5 right hemiparesis, increased radiographic size on MRI of the original tumor, and a new adjacent satellite lesion with surrounding edema.