General Discussion
In reply to the discussion: This message was self-deleted by its author [View all]csziggy
(34,189 posts)According to the figures I found through research, 80% of all masses on kidneys are cancer. Taking a biopsy of a kidney is about as invasive as re-secting (removing part of it) or removing it. With today's methods kidney removal can be done with extremely small incisions.
In my case, the decision to not wait was a good one - in fact, the trans arterial valve replacement I had was allowed and expedited because of the concern about the mass on my kidney. The CT scan that showed the mass measured it at about 4 x 4.5 cm. By the time they removed it six weeks later it was half again as large. Because of the location on the kidney they could not re-sect and had to take the entire kidney.
The biggest danger with a mass on a kidney is that it will spread to other organs. So long as it is confined to one kidney or part of a kidney it can be quickly removed.
This information pertains to the research I did for my own case - kidney masses in a young child may be very different. I am not a doctor, just a self informed patient.