Overall (A) and disease-free survival curves (B) of patients with FDC sarcoma, estimated in groups with low-, intermediate- and high-risk tumors, showing data of 120 mo. A: Overall, P = 0.000; low-risk vs mediate-risk, P = 0.273; low-risk vs high-risk, P = 0.000; mediate-risk vs high-risk, P = 0.017; B: Overall, P = 0.000; low-risk vs mediate-risk, P = 0.003; low-risk vs high-risk, P = 0.000; mediate-risk vs high-risk, P = 0.207.