ALK and neoplasm: In fact, 5q, 8p, 9q, 11p and 11q were significantly more amplified, and 6q was more deleted in ALK fusion-positive tumours, whereas, in ALK fusion-negative tumours, 17q was more amplified, and 8p and 9p were more deleted (Figure 1, Table 2a, Additional file1: Table S3-S5).