Furthermore, investigation regarding osteosarcoma clinicopathologic characteristics suggested that high VEGF expression was significantly associated with metastasis (OR, 4.39; 95% CI, 2.77–6.95; p < 0.001), clinical stage (OR, 0.73; 95% CI, 0.62–0.87; p < 0.001), and microvessel density (SMD, 3.33, 95% CI,1.57–5.10, p < 0.001), but not associated with tumor location, gender, age, local recurrence, and chemotherapy response. This evidence concerns the gene VEGFA and neoplasm.