医用影像检查设备的进展及临床应用，对肿瘤性疾病的探测和诊断产生了深远的影响，在肾脏较之身体其他部位更为显著。CT和B型超声（US）的广泛应用，肾脏疾病的检出率和诊断准确率明显提高，尤其是微小肾实质肿瘤一、定义：发生在肾脏实质内，病灶直径≤3cm的实质性或囊实性肿 The progress and clinical application of medical imaging equipment have had a profound impact on the detection and diagnosis of neoplastic diseases and are more significant in the kidney than in other parts of the body. CT and B-mode ultrasound (US) is widely used, the detection rate of renal disease and diagnostic accuracy was significantly increased, especially in small renal parenchymal tumors First, the definition: occurs in the parenchyma, lesion diameter ≤ 3cm of the substantive or capsule Solid swollen