Hi @covington, welcome to Mayo Connect. These decisions can be so difficult, I'm sorry to hear that you are facing this decision. Trust your instincts, give yourself grace, and recognize that you actually know more than a patient with no cancer experience. It's always hard to give advice over an on-line forum, keep that in mind. None of us really know your history or level of health and strength. I know I'm adding more questions than answers. It's such a personal decision.
How do you feel about your current team of doctors? Confident? Have you been speaking with a surgeon or your established oncologist? A pulmonologist may offer a unique perspective, as they may be able to share some info on the risks and the impact of living without a lobe.
I'm assuming that the IR (interventional radiologist) would perform a needle core biopsy. It sounds like the bleeding from the bronchoscopy was unexpected, do they know what caused that? Might they have the same difficulties with a needle biopsy?