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.
Lung (Definition) 1  Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. 2  A lung nodule is a symptom in which a person has a chest x-ray or CT scan that shows a small lump (nodule) in a lung. A lung nodule can be cancerous or non-cancerous. If cancerous, it can be a lung cancer or can be a metastatic cancer that spread from another part of the body. ...Read more.