On studying the NQO1 mean expression in different lesions, we found increased expression in carcinoma cases (56%, mean ± SD: 28.30 ± 27.29) than other lesions (20%, mean ± SD: 6.30 ± 9.88 in benign; and 25%, mean ± SD: 12.40 ± 21.08 in borderline tumors), and the difference was statistically significant (P < 0.001) as shown in Table 1, Figure 3c. The gene discussed is NQO1; the disease is carcinoma.