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.
Yes, lung nodules can be cancerous, though most lung nodules are noncancerous (benign). Lung nodules â small masses of tissue in the lung â are quite common. They appear as round, white shadows on a chest X-ray or computerized tomography (CT) scan.Lung nodules are usually about 0.2 inch (5 millimeters) to 1.2 inches (30 millimeters) in size.A larger lung nodule, such as one that's 30 millimeters or larger, is more likely to be cancerous than is a smaller lung nodule.ung nodules â small masses of tissue in the lung â are quite common. They appear as round, white shadows on a chest X-ray or computerized tomography (CT) scan.