Glioma is the most common type of brain tumour.
Within the brain there are nerve cells, and cells that support and protect the nerve cells. The supporting cells are called glial cells. A tumour of these is known as a glioma.
Astrocytomas, ependymomas and oligodendrogliomas are all types of glioma. They are named after the cells from which they grow: astrocytes, ependymal cells and oligodendrocytes.
More information is available in the section on cancer of the brain.
You can also visit the NHS Choices website for information on cancer support groups in your area