对肾癌来说囊性肾癌占10%~15%。囊性肾癌最常见表现是多房比单房囊性病变多见。多房可分为大囊或微囊性。小房有恶性细胞为衬,常含不同量的新旧血液。囊性肾细胞癌可因肾细胞癌发生在囊肿壁或肾细胞癌发生囊变。囊肿壁或间隔出现增厚、钙化或实性结节时要考虑囊肿恶变可能。200 Cystic kidney cancer for renal cell carcinoma accounts for 10% to 15%. The most common manifestation of cystic renal cell carcinoma is more common than single cystic lesions. Many rooms can be divided into large capsule or microcapsule. Small cells with malignant cells lining, often containing different amounts of old and new blood. Cystic renal cell carcinoma can occur due to renal cell carcinoma cyst wall or renal cell carcinoma cystic change. Cyst wall or interval thickening, calcification or solid nodules may be considered malignant cyst may. 200