Treatment options include surgery, radiotherapy, radiosurgery, and chemotherapy. The infiltrating growth of microscopic tentacles in<unk> s makes complete surgical removal difficult or impossible without injuring brain tissue needed for normal neurological function. However, surgery can still reduce or control tumor size. Possible side effects of surgical intervention include brain swelling, which can be treated with steroids, and epileptic seizures. Complete surgical excision of low-grade tumors is associated with a good prognosis. However, the tumor may recur if the resection is incomplete, in which case further surgery or the use of other therapies may be required. Standard radiotherapy for<unk>  requires 10 to 30 sessions, depending on the subtype of the tumor, and may sometimes be performed after surgical resection to improve outcomes and survival rates. Side effects include the possibility of local inflammation, leading to headaches, which can be treated with oral medication. Radiosurgery uses computer modelling to focus minimal radiation doses at the exact location of the tumour, while minimising the dose to the surrounding healthy brain tissue. Radiosurgery may be a complementary treatment after regular surgery, or it may represent the primary treatment technique. Although chemotherapy for<unk>  improves overall survival, it is effective only in about 20% of cases. Researchers are currently investigating a number of promising new treatment techniques including gene therapy, immunotherapy, and novel chemotherapies.
Fibrillary astrocytoma
Diktyoma
Subependymal giant cell astrocytoma
Oligoastrocytoma
Neurothekeoma
Pilocytic astrocytoma
Anaplastic astrocytoma
Giant-cell glioblastoma