Impact of lymphatic and/or blood vessel invasion in stage II gastric cancer

Figure 1 Survival curves of patients with stage II gastric cancer according to lymph node metastasis and lymphatic and/or blood vessel invasion. A: Overall survival curve of the lymph node (LN)-positive patients (LN⁺) was significantly worse than that of the LN-negative patients ( LN^-) (P = 0.015); B: Overall survival curve of the lymphatic and/or blood vessel invasion (LBVI)-positive (LBVI⁺) patients was significantly worse than that of the LBVI-negative (LBVI^-) patients (P = 0.006).

Figure 2 Cumulative survival of Groups I-IV according to the status of lymph node metastasis and lymphatic and/or blood vessel invasion. There was a significant difference in overall survival between the four groups (P = 0.009). Moreover, there was a significant difference in overall survival between Groups I and II (P = 0.022). However, the comparison of Group III with IV revealed no significant difference (P = 0.482). LBVI: Lymphatic and/or blood vessel invasion; LN: Lymph node.