I visited my oncologist today. I have had pain in my right hip where I was diagnosed with metastatic prostate cancer in June 2016. Scans then showed 4 mets, on both hips, rib & T10 & T11 vertebrae. Because of pain in my right hip, I had another scan recently which supposedly shows that the metastatic cancer can only be seen on my T11 vertebrae after ADT, radiation, & chemotherapy treatments. The scans show severe osteoarthritis on my right hip so my oncologist has recommended a hip replacement. I asked the question about how can you tell the difference between arthritis and mets and he said that is a good question and now wonders if I did not have mets on my right hip at all? I now wonder about the other mets. Has anyone else had this question answered? Also has anyone else had a hip replacement under these circumstances?