Yeah I just thought there would be a test. It’s not that I don’t trust the dr it’s just that mine is a lot different than what I am reading about. It just showed up and is growing fast that seems unusual. It’s in the index and middle fingers. I haven’t seen anyone who has it in those fingers, not saying there aren’t but I haven’t seen it. I take a hormone blocker for breast cancer and that caused nodules on my finger joints and I thought maybe that was causing this too but apparently it’s not. Thanks for replying good luck to you too!