On the other hand, T1- and T2- relaxation times ​​​​​of IDH-wildtype tumors are from 1000 to 2500 msec and from 100 to 200 msec, and those of oligodendrogliomas range from 1000 to 3500 msec and from 100 to 400 msec [8]. The gene discussed is IDH2; the disease is oligodendroglioma.