To determine the association of an EMT phenotype with the presence of ALK rearrangements in NSCLC, we analyzed data sets of primary ALK-rearranged NSCLC as well as ALK-rearranged human cell lines for EMT signatures and the EMT markers E-cadherin, vimentin and N-cadherin. The gene discussed is CDH1; the disease is non-small cell lung carcinoma.