My sister had an MRI that came back and showed abnomormalities in the lungs, and now further testing is required. I am hysterical because the doctor said she doesn't know what it is wihtout further testing, but that it is "very serious" and "we have a long road ahead of us". They did a CT scan of the pelvis, stomach, chest, and head and we are awaiting results, but she said a biopsy is necessary. I am trying to stay positive, but hearing her talk like that is discouraging. When I asked some possibilities of these abnormalities, she didn't want to speculate. But then how can she say it is serious? I just want to have an idea to some of the possibilities. Please help. I am already imagining the worst.