A CT scan of the chest provides detailed images of the lungs and surrounding structures, helping doctors identify a range of abnormalities. It may detect lung infections, nodules, masses, inflammation, pleural fluid and changes associated with conditions such as emphysema or bronchiectasis. CT imaging may be recommended for persistent cough, breathing difficulties or an abnormal chest X-ray. However, an abnormal CT finding does not automatically indicate a serious condition, and further tests ma