A continuous EEG recording of the brain's electrical activity may help to identify and localize seizure activity, especially in children. CT scans and MRI scans of the brain may show the presence of a diffuse mass that fails to light up when a contrast dye is given. In some cases, a biopsy may be required to confirm the nature of the tumour.
Fibrillary astrocytoma
Diktyoma
Subependymal giant cell astrocytoma
Oligoastrocytoma
Neurothekeoma
Pilocytic astrocytoma
Anaplastic astrocytoma
Giant-cell glioblastoma