Ken, Yes , you need a further look , it could be a swollen prostate, infection, or cancer. However, we won't know this until we get more extensive images. Keep us informed of what the MRI results are and what your doctors are saying. You were consulting with a urologist and the radiation oncologist at this point? Both should be on your team to discuss things. What part of North America are you in? The geographic location sometimes depends on the treatment . Keep us in the loop of your progress. James