focal infection
1.Materials and methods: A total of 69 patients with 70 renal masses were enrolled in this study prospectively. The renal masses included renal cell carcinoma (RCC, n=47), angiomyolipoma (AML, n=11), pseudotumor (n=5), transitional cell carcinoma (n=3), acidophile cell adenoma (n=2), nephroblastoma (n=1), focal infection (n=1).

