Stereotactic Radiotherapy for Cerebral Metastases with Recent Hemorrhagic Signal

This trial is studying whether it is safe and effective to use a precise form of radiation called stereotactic radiotherapy to treat brain tumors (metastases from cancers elsewhere in the body) that show signs of bleeding inside the tumor, a situation that has historically been considered risky to treat with radiation. **You may be eligible if...** - You are 18 or older with 1 to 4 brain metastases (cancer that has spread to the brain from another cancer) - At least one brain tumor shows signs of bleeding on CT or MRI scans - The tumors are between 5 and 30 mm in size - Your primary cancer has been diagnosed by tissue biopsy - Your doctor's tumor board has agreed you are suitable for stereotactic radiotherapy - Your life expectancy is more than 6 months **You may NOT be eligible if...** - You have small cell lung cancer, germ cell tumors, lymphoma, leukemia, or myeloma - Your tumor is located in the brainstem - You have a neurodegenerative condition (like Alzheimer's or Parkinson's) - You are currently on certain anti-cancer therapies (with some exceptions) - The cancer has spread to the lining of the brain (meningeal involvement) Talk to your doctor to see if this trial is right for you.