The Gleason score is a grading system for prostate cancer, according to the Cleveland Clinic. It usually ranges from a 6, which is low-grade cancer, to a 10, which is considered a high-grade cancer.

Joe Biden's prostate cancer diagnosis reveals a high Gleason score, indicating aggressive cancer. Dr. Arpeet Shah and Dr. Nicole Saphier comment on what this means for prognosis.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.

Former President Joe Biden has been diagnosed with aggressive prostate cancer, with the cancer cells having spread to the bone. Biden’s office said his Gleason score is 9.