| ICD9 = | ICDO = | Image = Astrocytoma.jpg | Caption = Two images — the above of which shows a normal brain and the below shows astrocytoma. | OMIM = 137800 | OMIM_mult = | MedlinePlus = | eMedicineSubj = med | eMedicineTopic = 2693 | DiseasesDB = 29449 | }} Astrocytomas are primary central nervous system tumors that arise primarily in and rarely spread away from the CNS parenchyma contained within the cranial vault. Astrocytomas "are CNS neoplasms in which the predominant cell type is… (More on Astrocytoma)