In non-small cell lung carcinoma (NSCLC), the most common ALK rearrangement is a fusion of ALK gene and echinoderm microtubule-associated protein-like 4 (EML4) gene, formed as a result of a small inversion within the short arm of chromosome 2, where the genes are located [2]. Here, EML4 is linked to non-small cell lung carcinoma.