Platelet-derived growth factor receptor beta expression correlated with tumor grade (r = 0.286; P = .021), venous tumor thrombosis (r = 0.263; P = .034), M+ category (r = 0.305; P = .014), and adrenal metastases (r = 0.306; P = .041). The gene discussed is PDGFRB; the disease is neoplasm.