@mysupportmydr46 Welcome to Mayo Clinic Connect. I'm sorry to hear you have a complex cyst that may require surgery.

From your post, it looks to be slow growing. If that is the case, perhaps you could seek a second opinion regarding a biopsy before surgery? I, too, had a complex cyst that was followed for a couple of years with ultrasounds and MRIs. It was decided that after starting dialysis [in Sept 2022] they would do a nephrectomy. Earlier in that year, however, after additional consultation, the surgeon told me that the cyst was not acting like a tumor or anything cancerous, and we elected to not follow through with that surgery. His information was as he reviewed diagnostic images, there was a difference in the blood flow that gave him pause.

I will be interested to hear what you decide, and please let us know if we may be able to answer any more questions?
Ginger