 [ Symptoms ] husband 78 stage iv lung cancer mastasies to both lungs neck 3 tumors in brain  of survival with radiation and chemo  he has had radiation to the brain and now 2 treatments of chemo his cancer has spread to both lungs a tumor in his shoulder and 3 in the brain he wants to know what  of men his age survive after the chemo and what will his quality of life be he is 78 it has definitely affected his memory associative capabilities and hand writing abilities his cancer is diagnosed as metastatic adenocarcinoma to the lung and brain [ Disease ] i am very very sorry to hear this i can not imagine how you all are feeling it is a tough time you have probably asked the medical team this question about survival and were not satisfied with the response doctors tend to be very vague when talking about survival rates  that is because there is no good definition for what that means it sounds like your husband is asking what his chances are of surviving the chemotherapy unfortunately it is impossible to tell that even doing comparisons with other patients is not useful because every person is baseline health status is different when they enter cancer treatment in general i would guess people who enter cancer treatment as robust individuals probably stand a better chance of getting through the course of treatment than a frail person the other sad truth is this no lung cancer is curable ultimately no one survives lung cancer your husband may understand this and be wondering but how long do i have left  unfortunately there is no crystal ball to predict that it is both a blessing and a frustration that some things are not known by human beings this is one of those things i urge you to cherish every moment you do have left together whether they ultimately number 5 or 5 000 i wish you both peace