I had a CT done last July which showed a 3-4mm density in the lung. The report suggest a long term 3-4 month ct follow up. I had another CT in October that showed no change. I just went for the 3rd CT last week and the Drs office called and said the Ct showed a slight progression in the lesion. The Dr scheduled me to see a pulmonologist. I was wondering if anyone can tell me what to expect at that appointment.