My brother has had surgery end of May .. managed to remove 90 % + of tumour but since then it has grown very quickly . His tumour is MGMT non methylated glioblastoma . He has decided to have no further treatment . He is 46 years old with two children . Had anyone with this type of tumour benefited from radiotherapy or any other treatments . He is worried any treatment will badly affect the quality of life for the remaining time he has with his family .