Hi,
So sorry to hear you got the run-around, which so many of us can relate to. I am glad to hear they finally found your tumor though. There have been people on these boards with kidney cysts and Cushing's but it's been awhile and I don't remember who they are. I seem to remember that a Cushing's expert, Dr. Ludlam, who used to work in Seattle told patients that cysts anywhere in the body are common with Cushing's. For example, I have a pineal gland cyst and liver cysts. My liver cysts have shrunken though since my last CT scan--I am currently in remission from Cushing's so perhaps the high cortisol was indeed causing these cysts. Perhaps someone who knows more about kidney cysts will chime in here. Good luck with everything.