Pancoast Tumor: Pancoast tumors are lung cancers that form at the top of the lung. They tend to spread to the chest wall rather than the lung tissue. These tumors usually respond well to treatment as long as they don't spread, or metastasize, to the lymph nodes or other systems.
CT Scan (CAT Scan, Computerized Axial Tomography) What is a CT scan? Computerized tomography scans (CT scans) are important diagnostic tools for a variety of medical conditions. Some areas of the body frequently evaluated by CT scans include the brain, neck, spine, chest, abdomen, pelvis, and sinuses. The CT scan process uses X-rays and a computer to produce cross-sectional images of the body.