ABCG2 and neoplasm: The ABCG2 profile (SE = 44.87, SP = 73.53, AUC = 0.59, Y = 0.18, p = 0.01) was a moderate indicator of tumor progression, as well as the ABCG2 score (SE = 31.94, SP = 93.22, AUC = 0.66, Y = 0.25, p = 0.0003), while MVD (SE = 13.70, SP = 100.0, AUC = 0.55, Y = 0.14, p = 0.37), average staining intensity (SE = 100.0, SP = 1.67, AUC = 0.51, Y = 0.1, p = 0.32), and the percentage of ABCG2-positive tumor cells (SE = 56.16, SP = 44.07, AUC = 0.51, Y = 0.002, p = 0.98) appeared to be weak indicators of tumor progression (Figure 3 and Figure 4).