Investigations for Glioma Following investigations help in evaluating the extent of brain tumor. 1)What is glioma? 2)Investigation for Glioma. Computerized tomography Magnetic resonance imaging Cerebral angiography Plain X-rays 3) Management for Glioma 4) Surgery for Glioma 5) Post-operative Care 6) Treatment of Glioma To know more about Neurosurgery, click here.