What Is a Lung Nodule?
10. Prevalence
It is difficult to be sure just how common lung nodules are because they so often go undiscovered. Regardless, it is still known that they are a common condition. Approximately 1 is found in every 100 CT scans. Because x-rays are less clear, that figure is around 1 in every 500.
In the United States alone, approximately 150,000 cases are discovered every year. Even if a patient with lung nodules does have an x-ray it still does not necessarily mean the nodules will be detected. It is estimated that of all the smokers aged over 50 years old, approximately half will have lung nodules.
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