Stage IIIA-N2 NSCLC: a review of its treatment approaches and future developments.

Few issues are as controversial in non-small cell lung cancer as the management of patients with stage IIIA-N2 non-small cell lung cancer. This manuscript reviews the reasons and the biases inherent to this controversy and discusses the different treatment approaches with emphasis on survival as evidenced by meta-analyses and large randomised clinical trials. Prospects on novel treatment modalities and future research opportunities are presented.