Hi @rensacb. I'm weighing in at last because of my renal cyst to let you know about the positive signs I detected in connection with yours. Mine was ruled a simple cyst without any effect on my adrenal gland; yours, by comparison, is said to be complex, raising questions that always come up when these growths show up on imagery. Curious (as you are) about what I faced, I asked all of many questions of my urologist and my nephrologist. Their recommendations in response have been to leave mine alone but watch it for growth and for symptoms that might indicate the need for surgery. Here's why. If the cyst were complex it would be a benign cyst rated as a Bosniak One or Two. If it were rated Bosniak 2f, it would be uncertain as to malignancy, but watched more attentively over time to see whether it changes or causes serious symptoms. For me: No change in size or composition over 6 years, no symptoms causing worries. For me, this is a classic case of confidence in my medical team. Nevertheless, on two occasions recently, I have asked radiologists looking at images for other examinations to compare my cyst with past imagery, and they have said, "Don't worry." As a result, I don't feel the need for a second opinion on the cyst. Martin

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