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90%肾结核均为原发感染期,细菌经血抵达肾脏,只有少数为原发感染扩散所致。细菌经肾小球过滤到达肾髓质引起结节增生和组织破坏,结核结节彼此融合,中心坏死形成干酪样病变,干酪样物质液化排入肾盏,肾盂形成空洞,[1]。CT平扫和CT增强扫描可以清晰显示空洞。CT也可较好的显示肾结
90% of renal tuberculosis are primary infection period, the bacteria arrived in the kidney through the blood, only a few caused by the spread of primary infection. Bacteria are filtered through the glomerulus to reach the medulla and cause nodular hyperplasia and tissue destruction. Tuberculous nodules fuse with each other and the central necrosis develops caseous lesions. The cheese-like substance is liquefied and discharged into the calyceal cavity, forming a cavity in the renal pelvis [1]. CT scan and CT enhanced scan can clearly show the hole. CT can also better show the kidney