What is the life expectancy w/out treat.? ct-multiple tumors in brain. current cancer-multi. myleloma. hist: prostate and lymphoma cancers. 80 yo male

Limited: There is no way to predict very accurately the survival time. At age 80, it is limited even if one were healthy otherwise ( family history of longevity ?). The time interval the tumors may lead to death depend on which parts of the brain or organs are impacted. People with myeloma or lymphoma often have impaired responses to infection. Talk to oncologist.