PPARG and metastatic malignant neoplasm in the lymph nodes: Expression level of ACACB (HR: 3.88, 95% CI: 1.50-10.02), FABP3 (HR: 3.24, 95% CI: 1.31-8.04), PDK4 (HR: 3.22, 95% CI: 1.21-7.72), PPARG (HR: 2.71, 95% CI: 1.01-7.42), and PLIN5 (HR: 3.42, 95% CI: 1.01-11.68) was significantly associated with OS in OSCC after adjusted for TNM stage and lymph node metastasis (Figure 3(c)).