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What will a CT scan of my sinuses reveal?

My doctor just ordered a CT scan of my sinuses because I've been having chest congestion and the chest x-ray came back okay. What will be revealed in the CT sinus scan? Is he looking for cancer?
A CT sinus scan is not an unreasonable option, particularly if you have a history of sinus disease, or if you have sinus congestion/infection currently. I can't read your physicians mind, but I highly doubt if they were getting the CT scan to look for a cancer. Cancer within your sinuses is very rare to begin with, and a CT scan probably isn't the best imaging modality to use if that is the question one is trying to answer (MRI would be better). More than likely what your physician is looking for is any evidence of chronic sinus disease, or chronic sinusitis. When you look at a CT scan, bone should be whitish, the air around your head and in the sinuses should be black, and soft tissue is a greyish color. Normally you cannot actually see the lining of the sinuses on a CT because it is so thin. However in chronic rhinosinusitis, the lining will be thickened and the sinuses are outlined by grey soft tissue. They may even be totally full of polyps or mucous. If your physician is thinking that post-nasal drip may be contributing to your cough/chest congestion, then this is probably more of what they are looking for. As I said, I can;t read your physicians mind however, nor do I have your medical records, so if you have more specific questions, I would recommend that you ask you physician. I hope this was helpful.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
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