Am I hearing you right? You have a T3 malignancy, and the doctors are going to make you wait to get a few minute long biopsy? And you are comfortable with this? If that is their call and they still don't know what is going on, you need to get that biopsy Monday, and then get on the phone yourself to get a second opinion immediately. Time is moving, the disease is still unchecked, and it appears you are still near square one. You have to learn to be a stronger advocate for what you need when you need it. Is their schedule or inability to come to a difinitive staging and treatment protocol more important than your life? I'm sorry to be so blunt, but how can you maintain confidence in these guys, not yet seek out a second opinion, and let the clock and the disease keep on ticking? Time is not on your side. Get answers on Monday. Get an appointment for a second opinion ASAP.