Should tumor with direct adjacent lobe invasion (Tdali) be assigned to T2 or T3 in non-small cell lung cancer: a meta-analysis.

Background: The staging of tumor with direct adjacent lobe invasion (Tdali) or interlobar invasion pleural 3 (ILI PL3) in TNM system of non-small cell lung cancer (NSCLC) is still in controversy. We conducted a meta-analysis to compare the prognosis of Tdali with T2 or T3 disease.

Methods: PubMed and Embase were searched for relevant studies.