Hello, a few weeks ago, my mom had a chest x-ray after experiencing pain and unable to sleep at night, and they found 4 masses in right lung & 1 mass in left lung, all very large. Today is her biopsy. What are the chances that she has lung cancer, and is it possible that these could be benign? Also, 5 years ago, she was diagnosed with breast cancer, but after chemo and radiation, she has been in remission ever since. She is 68 (69 next week), never smoked, and is healthy. Thank you!