Experience with complex kidney cysts?

Guess you've done a lot of Googling and found articles like:

There are two significant categories of kidney cysts that exist. The most common type of kidney cyst is the “simple kidney cyst.” The simple kidney cyst is very common and has no risk of becoming a kidney cancer. The other type of cyst is called a “complex cyst.” The term “complex cyst” refers to a spectrum of cysts that have different characteristics which may make them suspicious for kidney cancer.

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Many complex kidney cysts may have a low risk for being or becoming a kidney cancer. However, there is some risk that a complex cyst is a kidney cancer and complex kidney cysts do require evaluation by an experienced Urologist who may consult with a radiologist. Often, complex kidney cysts may be treated with active surveillance to see if the cyst changes in any way over time.
http://kidneycancerinstitute.com/kidney-cyst.html

If you look up BOSNIAK classification system you will find lots of good information on the subject. Dr. BOSNIAK is a radiologist in NYC who developed the system that is widely used. He's an incredible Radiologist.
Just went through a situation with a kidney tumor.

He's always willing to help anyone dealing with these problems.

Zimac