I am told that kidneys are hardly ever equal in size. One is almost always smaller than the other. The key is in how much smaller one of the kidneys is. So, depending on the circumstances, and on the difference in kidney size, it may mean nothing at all, or it may mean damage to the kidney(s) from long term kidney disease. Some renal disorders, such as a narrowed renal artery, cause less blood to get to the kidney, which then shrinks as a result. When both kidneys have shrunk, it can mean that there is kidney disease present. There is also some natural shrinkage of organs and tissue (including the kidneys) from aging as we lose some of the cells.
What tests have you had? Have you been diagnosed with kidney disease?
I had cat scan of abdomen and pelvis and it showed the shrinking left kidney and an aneurysm infrarenal artery which makes me suspect that when I had my heart attack a year ago it did leave some damage. I had a cat scan four years ago and it was normal. Thank you for your reply, it meant a lot to me and I have followup appt with cardiothoracic surgeon to determine severity of aneurysn.
I have similar issues with similar damage, one kidney considerably smaller than the other. I have a condition which weakens and alters the structure of the arterial walls and makes one susceptible to aneurysms and other things. I have been told that blood clots travel from the heart and can get into or near the kidneys and impede the blood flow to the kidney or certain areas of the kidneys. It can be difficult to determine what exactly has happened after the fact. I did have a renal biopsy (and other tests) over the last few years which left no doubt about the cause of my kidney damage. It is always good to get some answers. The one thing we can all do is to maintain a good blood pressure control - it makes all the difference!
It seems that you are in good hands and your doctor really looks after you! I am told I need the same type of an assessment. I think our doctors just keep an eye on things to make sure there are no changes. Best of luck and know that you are not alone!
Last edited by flowergirl2day; 01-21-2012 at 09:29 PM.