URMC / Encyclopedia / Collection Understanding Your Diagnosis Brain Tumor: Diagnosis Skull X-ray Computed Tomography (CT) Scan of the Brain Computed Tomography (CT) Scan of the Spine Magnetic Resonance Imaging (MRI) of the Spine and Brain Positron Emission Tomography (PET) Electroencephalogram (EEG) Craniotomy Brain Tumors: Newly Diagnosed Brain Tumor: Grades Myelogram