Wondering if someone could help if possible? My 86 year old father has been having urinary issues last months. He couldnt pee and had catheters..At one point 2 weeks ago, he developed massive blood clots...They scoped him, cleaned it up stopped 3 bleeding holes in bladder .. Took some tissues samples, and pathology said an aggressive form of cancer .. When the cytology test came back it was negative. Doctors sent his samples to the MAYO Clinic as it just made no sense to them. Mayo clinic is confused and said they dont know what it is and requested more clinic notes, images, and test results. He did have a blockage somewhere in left kidney very close to bladder..They put neph tube there... Week later right kidney developed a blockage somewhere as well. Renal scans were done, and they put a neph tube in right kidney as well. All other test results are normal. .Bone scan showed nothing at all. 2 other issues, anemia and has had mini strokes in his brain. But other than that, all is well.