Defense Trade Cooperation Treaties & Resources. This page provides information intended to assist in using the Defense Trade Cooperation Treaties the U.S. has signed with the United Kingdom and Australia. The information provided here supports the users of the exemptions to the International Traffic in Arms Regulations (ITAR) created pursuant to the Treaties.
Definition of Lung Nodules. A lung nodule is defined as a âspotâ on the lung that is three centimeters (about 1.5 inches) in diameter or less. If an abnormality is seen on an x-ray of the lungs that is larger than three centimeters, it is considered a âlung massâ instead of a nodule and is more likely to be cancerous.
A: Lung nodules are spots on the chest that are 3 cm or less. If the diameter is more than 3 cm it is characterized as lung mass. For a nodule to be detected by an x-ray it has to be at least 1 cm in size.A CT scan is more detailed as compared to an x-ray and it can show give much more information about a nodule.: Yes, the size of lung nodules is a major determining factor whether the lung nodules, showing up as small, circular shadows on an X-Ray, represent a cancerous growth. If these shapes are less than 25 mm or 1 inch across, then they are no major cause for concern.