Lung Cancer Pathophysiology, Etiology, and Risk Factors
The pathophysiology of lung cancer is often described as very intricate and not completely understood. Research efforts have progressed, however, and medical experts now have better insight regarding the etiology and risk factors associated with the development of lung cancer. These include cigarette smoking and occupational exposure, such as radon and asbestos. Read more.

Lung Cancer Clinical Presentation
There are no specific signs and symptoms for lung cancer, and the clinical presentation may vary from patient to patient. At diagnosis, the vast majority of patients have advanced disease. The frequent absence of symptoms until locally advanced or metastatic disease is present reveals the aggressive nature of lung cancer and highlights the urgent need to expand routine screening efforts in patients at high risk. Read more.