Induction therapy for lung cancer: sailing across the pillars of Hercules.

In spite of numerous clinical trials, the jury is still out on the value of induction therapy for locally advanced lung cancer. We elected to address this topic from the multifaceted views of the clinicians often involved in lung cancer management and according the most recent views on locally advanced NSCLC. The concept of a prognostic stratification of N2 disease subsets, especially single vs multiple zone, has been introduced and this may lead to a new interpretation of locally advanced NSCLC. Ten crucial issues were identified that may have an impact on the approach to patients with locally advanced lung cancer in everyday practice.