Reports say Biden revealed a diagnosis of aggressive stage 4 metastatic prostate cancer less than a year ago, with doctors noting the disease had spread to his bones. One physician, Dr. Steven Quay, questioned the timing, saying prostate cancer that reaches bone typically develops over years and suggested treatment may have begun earlier.
Sources quoted in the piece note high five-year mortality for cancer that has spread to bone and cite average survival figures of two to three years; one doctor in the report said survival could be measured in months. Biden reportedly is undergoing radiation and hormone treatments.