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.
Your doctor has told you that you have a lung nodule, a spot on the lungs. There are no signs or symptoms of a nodule, so they can only be found incidentally, either because you had symptoms of another lung problem or by chance â as part of a routine medical exam or during a chest X-ray or CT scan for something else.