More than 350,000 people alive today have been diagnosed.
American Cancer Society's estimates for lung cancer in the United States; 2013:
- About 228,190 new cases of lung cancer will be diagnosed (118,080 in men and 110,110 in women).
- There will be an estimated 159,480 deaths from lung cancer (87,260 in men and 72,220 among women), accounting for about 27% of all cancer deaths.
Who is at risk?
What causes lung cancer?
Malignant tumors may or may not spread cancer cells. The cells must first enter into the bloodstream where they are subject to attack by the immune system, could die by bumping into the vessels walls, or simply fail to lodge. Lymph is a fluid that surrounds the lung tissue. It is the most likely carrier of the cancerous lung cells. Lymph flows into lymph nodes, organs that help fight infection. Lymph nodes are located throughout the body, making lung cancer easily susceptible to metastasis.