诊断; 慢性肾功能不全CKD4期 双肾多发性囊肿入院后辅助检查:血常规:WBC 9.6E*9/L,RBC5.53E*12/L,HB167g/L,PLT207E*9/L.尿常规:PRO2+,GLU=-. 24h尿蛋白定量;0.66g. 生化;GLU4.91mmol/L,UA259umol/L,Cr221umol/L,BUN8.17mmol/L,k3.09mmol/L,CHOL6.97mmol/L,TG 1.56mmol/L,TP75.80mmol/L.肾小管功能类:B2-M82000g/L,MA343.5mg/L,IgG4.82mg/L,TRU2.34mg/dL.B超:1.双肾偏小,双肾弥漫性病变.2.双肾多发性囊肿.3.肝胆脾胰未见明显异常.