High grade, low grade, well or poorly differentiated and Gleason’s score. What is the significance in prostate cancer.

Here's the question: I enjoy reading and listening to your perspective on Prostate cancer. You mention High grade or Low grade types of cancer. I presume this pertains to the Gleason score? Or are there other factors involved?   Here's the answer: Assuming the cancer is no where else and is confined to the prostate …