Former Pres. Biden is battling an "aggressive" form of prostate cancer, his office announced on Sunday, adding that his condition is characterized by a "Gleason score of 9."
His office also said Biden's diagnosis included metastasis to the bone.
As the world reacts to Biden's medical news, ABC News has broken down what his condition means and what possible treatments can be done.
Read more: https://abcnews.visitlink.me/-7cA5G
