EpCAM was only positively expressed in 18.6% of cases with a range of 6.3-27.6% in each clinical stage, and there was a declining trend of EpCAM positivity in patients with advanced-stage RCC (III and IV) compared to early-stage cases (I and II) (Figure 1A and Table 2). The gene discussed is EPCAM; the disease is renal cell carcinoma.