My father was diagnosed with Stage 4 lung cancer last year. In March of this year an MRI revealed one brain tumor. My father had ten rounds of whole brain radiation. In May he had radiosurgery after another MRI showed no change in brain tumor. This month an MRI showed the tumor has doubled in size.
Since neither the whole brain radiation nor the radiosurgery worked, what options does my dad have. Doctors told him in March that surgery was too risky because tumor is on left side of brain.
I would greatly appreciate your help with this.