Malignant Glioma

**Semantic type:** Neoplastic Process

**Definition:** A grade 3 or grade 4 glioma arising from the central nervous system. This category includes glioblastoma, anaplastic astrocytoma, anaplastic ependymoma, anaplastic oligodendroglioma, and anaplastic oligoastrocytoma.

**Synonyms:** - GLIOMA, MALIGNANT - Glioma, malignant - High Grade Glioma - High-Grade Glioma - Malignant Glial Neoplasm - Malignant Glial Neoplasm - Malignant Glial Tumor - Malignant Glial Tumor - Malignant Neuroglial Neoplasm - Malignant Neuroglial Neoplasm - Malignant Neuroglial Tumor - Malignant Neuroglial Tumor