Processing the finding of a lung nodule is never easy. It’s not easy news to hear. You need to get your questions answered. Take some time to note them down, and if possible, take someone with you to appointments and let them know that they are there to help ask the questions that you’re not thinking of asking. You didn’t mention what type of doctor this is or what country you are in, but if you’re not comfortable in the approach of this doctor, find another doctor for a second opinion, preferably a thoracic oncologist.
Depending on the location of the nodule, getting a biopsy can be difficult. If any lymph nodes seem enlarged, biopsy of that fluid may be easier.
My experience says a PET is a good idea. Personally, I would not have surgery without one. IF it is cancer, I would want to know if the cancer has spread to any other area. The PET would confirm that, and allow for the doctor to assign a stage to the cancer, which can help to drive treatment options and decisions.
Best of luck to you, hoping that you get the answers that you need, keep us posted, Lisa