Using lung cancer tissue microarrays containing 1,528 samples, rearrangement of KIF5B was examined by a split FISH assay to discover new fusions, because they previously identified KIF5B-ALK fusions in lung cancer (Takeuchi et al., 2009) and thus hypothesized that KIF5B might fuse to other kinases in lung cancer. This evidence concerns the gene KIF5B and lung cancer.