SNHG7 and neoplasm: In order to examine the correlation between SNHG7 level and clinical pathological features, we stratified 53 tumor tissue samples (cohort 1) into high and low expression groups (Table 2) and found that SNHG7 expression was significantly correlated with tumor size (< 5 vs. ≥ 5 cm, P = 0.025), lymphatic metastasis (absent vs. present, P = 0.002), distant metastasis (absent vs. present, P = 0.004), and tumor stage (I/II vs. III/IV P = 0.002, Fig. 2d–g).