PEBP1 and neoplasm: RKIP values were significantly correlated with lymph node involvement (Figure 4B), presence of visceral metastases (Figure 4C), clinical stage (P=0.0001; Spearman correlation: rs=-0.63, P<0.0001) (Figure 4D) and tumor size (≤ 7 vs > 7 cm; P = 0.0004) (Figure 4E).