Anaplastic Oligoastrocytoma, Not Otherwise Specified

**Semantic type:** Neoplastic Process

**Definition:** A central nervous system tumor with morphological features of anaplastic oligoastrocytoma in which there is insufficient information on the IDH genes status.

**Synonyms:** - Anaplastic Oligoastrocytoma, NOS - Anaplastic Oligoastrocytoma, NOS