The (malignant)<unk>  belongs to the group of diffuse glioma and arises in the central nervous system (brain and spinal cord) from precursor stem cells of the oligodendrocytes. This tumor occurs primarily in middle adulthood with a frequency peak in the 4th and 5th decade of life.
Anaplastic oligodendroglioma
Anaplastic astrocytoma
Neurothekeoma
Oligodendroglioma
Giant-cell glioblastoma
Subependymal giant cell astrocytoma
Fibrillary astrocytoma
Pilocytic astrocytoma