Risk factors for lymph node metastasis in patients with pancreatic neuroendocrine neoplasms

Figure 1 Rate of lymph node metastasis according to tumor size. The rates of lymph node metastasis according to tumor size were as follows: 0% (0/29 cases, ≤ 10 mm group), 3% (1/31 cases, 11 mm-20 mm group), 25% (2/8 cases, 21-30 mm group), 50% (3/6 cases, 31-40 mm group), and 50% (4/8 cases, > 40 mm group). LN: Lymph node.

Figure 2 Overall survival after surgery of 82 patients according to the presence of lymph node metastasis. The cumulative overall survival rate after surgery among patients who had no lymph node (LN) metastasis was significantly higher than that for those who had LN metastasis. LN: Lymph node.