Why can a Dr. lie to you and then perform radical surgery without your permission?

I've asked many lawyers about this situation and nobody will help me either financially or emotionally. I was told I had a 1 mm nodule on my upper right lobe and the dr. assured me he would remove the nodule and some surrounding tissue. Under sedation I was given the medical release form which stated upper right lobectomy. Had I been aware, I wouldn't have given my permission. I was told I would be hospitalized for 1-2 days. Imagine my shock when I woke up In the ICU and spent seven days in the hospital without a bed. I had two drains in my body. It took many questions and many days to find out what happened to me. The Dr. never addressed me again. His PA told me the dr. removed the middle lobe of my lung because it was "in the way." Not understanding the pain under my right breast, I found out at my follow-up visit(Dr. not present) the Dr. also removed breast tissue and a rib. No one could explain why. I can no longer care for myself. Just want an answer to my question.