HOXC9 and neoplasm: Comparing benign to tumour samples, HOXA6 (p = 4.26 × 10−5), HOXB6 (p = 0.001), HOXC5 (p = 4.69 × 10−5), HOXC6 (p = 3.02 × 10−28), and HOXC9 (p = 0.0001) all showed significantly greater expression in tumour samples, with HOXC6 having by far the greater fold difference (Figure 9).