Radiologic Pathologic Correlation of Advanced MR Imaging to Guide the Biopsy of Cerebral Malignancies

This study is evaluating whether advanced MRI techniques (including blood flow, water movement, and chemical analysis imaging) can accurately guide surgeons to the most dangerous areas within a brain tumor, improving biopsy precision. **You may be eligible if...** - You are over 18 years old - You have a brain lesion that is suspected to be or has already been confirmed as a primary brain tumor - You are scheduled for brain tumor surgery or biopsy - You are able to undergo MRI with contrast dye - You can understand and provide consent to participate **You may NOT be eligible if...** - Your anatomy makes a safe brain biopsy impossible - You have severe kidney disease (which makes contrast dye unsafe) - You have a pacemaker, metal implants in your head, or other devices incompatible with MRI - Your doctors determine that the brain scan cannot be safely performed Talk to your doctor to see if this trial is right for you.