My friend was diagnosed w/stage 4 Prostate Ca 9 yrs ago, treated in Florida, then in 2009 diagnosed with Multiple Myeloma, now diagnosed with a 3rd primary, either Gallbladder or Bile duct Ca. An MRI with contrast is required to determine which is the actual diagnosis, before proceeding with either surgery or radiation. If Radiation is indicated, is Eovist, (contrast) possible since one kidney is involved in Ca. I expect the patients' nephrologist will be involved in this determination, what say you?