The Gamma Knife has also been used to treat small malignant tumors that have well - defined borders as well as some metastatic tumors, which are spread to the brain from cancer in other parts of the body.
Gamma - nuga on kasutatud ka väikeste pahaloomuliste, selgelt piiritletud kasvajate ravis, samuti mõningate aju metastaatiliste kasvajate ravis, mis on lähtunud mõnes muus keha osas vohavast vähist.