Why is lung cancer so hard to detect?

Why is lung cancer so hard to detect?

Jay M. Lee (Surgical Director, Thoracic Oncology Program, UCLA) gives expert video advice on: How is lung cancer diagnosed?; What are some common non-surgical procedures used to diagnose lung cancer?; Can waiting for a lung cancer diagnosis cause a dangerous delay in treatment? and more...

Lung cancer is difficult to detect because currently there are no recommended screening studies that are endorsed by any of the major organizations, so often lung cancer is detected while patients are systematic and often this is at a more advanced stage.