Except for the initial tumor P08-A3, no IDH1 mutation was predicted in four other patient-matched pairs P01-A2/A3, P07-A3/G4, P12-A3/G4, and P17-A2/A3 of which P07 and P12 were IDH wild type according to initial Sanger sequencing tests. Here, IDH1 is linked to neoplasm.