The original pathology diagnoses of lesions were the following: five astrocytoma IDH-mutant, two oligodendroglioma IDH-mutant and 1p/19q co-deleted, one pilocytic astrocytoma, one ganglioglioma, and two diffuse gliomas with morphological features consistent with astrocytoma grade 2, with IDH wild type. The gene discussed is IDH1; the disease is oligodendroglioma.