I too have 2 liver cysts and a 3-centimeter one on the surface of one kidney near my adrenal gland. They too were discovered over the last six years on routine ultrasound exams of my kidney. They have been looked at by MRI (twice) and ultrasound (twice). The radiologist reported each time that there was no evidence that the cysts were cancerous or functional as pseudo-glandular growths. My medical team repeatedly concluded that, so long as the cysts don't grow -- and they cause no perceptible symptoms -- we should not biopsy them, which would be a mandatory step before considering surgery to remove them. So I agree with @hopeful33250 that the cysts are "not all that serious."

At this stage, I just keep the cysts on the front burner of the questions to raise with my primary physician, urologist, and nephrologist on a regular basis.

I have a bunch of cysts in my lungs, and two doctors told me they are harmless. So since I have so many other medical problems, I've decided not to worry about them.<br><br>