@sallik74- Good Morning. I had a CT Lung screening and they found a spiculated nodule that had been growing for 9 years. Then I had my testing and procedures done at Mayo in Phoenix, AZ. I had a spiculated nodule in my left upper lung. They did a PET scan, barely lit up, bronchoscopy, then a breathing test, stress tests, etc. They did a Segmentectomy and then did a biopsy and marker testing on the nodule after they got it out. It was adenocarcinoma- KRAS mutation. They knew it was cancer before they even took it out. Fine with me! I wanted it out. The Pulmonologist said he didn’t need a biopsy because he has seen enough of them to know it was cancer. But, I could always request a biopsy if I wanted one before the surgery. I trust Mayo, so I didn’t see a need for it, and he was correct in his diagnosis. If you prefer to have a biopsy first, demand one. You have to feel comfortable with your Doctors and Surgeons and what they are telling you. If not, yea, go where you trust. God Bless you, and Beat wishes for you!