Conversation: The conversation between human and AI assistant.
[|Human|] I had a CT lung scan yesterday. I am a long time smoker. I was called today to set up an appointment for another CT scan- this time of the chest. Does his mean that they probably saw signs of cancer and want to see how far it has spread.? It was after hours and I can t get hold of my doctor.
[|AI|]  Hi thanks for your question. There is no doubt that cigarette smoking causes cancer, besides many more problems, But ordering for repeat CT scan doesn't means cancer. There could be many more reasons for which your physician wants to repeat the scan. Maybe he/ She wants more description of the findings for which CT was ordered, or he wants some missing details to be looked into, and finally he wants contrast study of the disease, in which scan is done after injecting a dye to confirm or rule out cancer Hope this answers your question