My husband has just had a grade 4 Glioblastoma removed from the rear left quadrant of his brain the size of an egg and the removed the majority of the lobe as there were multiple lesions. We understand there is a average 15 month life span with treatment and 3 months without , but what we cannot seem to find out, and doctors seem to be hesitant to answer, is what his next few months will look like if he chooses to NOT take further treatment. Can you enlighten us.