<prompt> Most common malignant brain tumorAstrocytomaGlioblastoma multiformeOligodendrogliomaEpendymoma  <response>: Ans. B Glioblastoma multiforme Ref: Sabiston.Page 1371 The following data should be remembered for brain tumors- Most common malignant Brain tumor: Secondaries Gliomas Meningiomas Astrocytomas. 