New radiation method aims to shrink large brain tumors with fewer side effects

This study tested a type of radiation called hypofractionated radiosurgery for people with large brain metastases (tumors that spread from other cancers). The goal was to find the safest dose that could kill tumor cells while limiting damage to healthy brain tissue. Twenty-four adults with one large brain tumor (at least 3 cm) took part. The results help doctors understand the best dose to use and the risk of side effects like brain swelling or tissue damage.