Is CT scan needed to see if there is cyst on kidney?
Patient: I did a Lumbar CT scan due to a herniated L4/L5 disc.  The CT scan showed a possible cyst on my left kidney.  I then did an ultrasound and they were unable to detect anything, now they are recommending a CT scan specifically for the kidney, is this necessary or was the ultrasound confirmation enough that no problem exists? Doctor: Good day and thank you for being with health care magic!!! If the cyst is small and it is characterized as a simple cyst then I don't think further CT SCAN is needed for a simple cyst. I hope I have answered your question properly.