As for the disease-free survival (DFS) analysis, low expression of MMP7 was found indicating remarkably better prognosis in KIRC (P = 0.0027), LGG (P = 0.0025), sarcoma (SARC) (P = 0.044), and thymoma (THYM) with P = 0.0023 (Figure 3B). The gene discussed is MMP7; the disease is thymoma.