In contrast, 18/28 (64%) ARMS showed an average gain varying from 2.9 to 4.8 and a percentage of tumor cells with extra copies of ALK ranging from 51% to 100% (Figure 1A, 1C), while 18/46 (40%) ERMS showed an average of signals per cells varying from 2.8 to 4.4, with a percentage of positive cells ranging from 43% to 100%. This evidence concerns the gene ALK and neoplasm.