LITT Followed by Hypofractionated RT for Newly Diagnosed Gliomas (GCC 20138)

Inclusion Criteria: 1. Patients with radiographic evidence of suggestive of a primary high-grade glioma 2. Brain MRI with contrast demonstrates an enhancing mass within 60 days prior to registration. Patient must be deemed a candidate for LITT from MRI by Neurosurgery in order to be eligible. 3. History and physical including neurological exam within 30 days prior to registration 4. Karnofsky performance status ≥50% within 30 days prior to registration 5. Age ≥ 18 years old 6. Patients must have signed an approved informed consent 7. Patients with the potential for pregnancy or impregnating their partner must agree to practice effective contraceptive methods to avoid conception while on study and for 6 months after study completion. 8. Female patients of child-bearing potential must have a negative pregnancy test within 28 days prior to study registration. Exclusion Criteria: 1. Patients that are not surgical candidates for stereotactic biopsy or laser ablation 2. Patients with impaired cardiac function or clinically significant cardiac diseases, including any of the following: * History or presence of serious uncontrolled ventricular or significant arrhythmias. * Any of the following within 6 months prior to registration: myocardial infarction, severe/unstable angina, coronary artery bypass graft, congestive heart failure, cerebrovascular accident, transient ischemic attack , pulmonary embolism 3. Infratentorial tumor or evidence of leptomeningeal spread 4. Inability to undergo a MRI 5. Pregnant or breast-feeding women