《老友》专家门诊:我今年80岁,患左肾囊肿已有20多年。2014年5月,医院体检显示我双肾囊肿:双肾形态大小正常,实质回声分布均匀,双肾肾盂肾盏不扩张,双肾内探及多个无回声区;回声区边界清,有包膜,后伴增强效应;右肾囊肿大者位于下极,大小约4.4×4.0cm,左肾囊肿大者位于上极,大小约9.6×6.9cm。现在,我左肾部位有时会出现酸痛。请问:肾囊肿应该怎样调治?大余县张×× “Friends” expert clinic: I am 80 years old, suffering from left renal cysts for more than 20 years. May 2014, the hospital examination showed that my renal cysts: normal kidney size, the actual distribution of echogenic, renal pelvis calyx does not expand, exploration of the kidneys and a number of anechoic areas; echogenic boundary clearance, a package Membrane, followed by enhanced effect; the right renal cyst is located in the lower pole, the size of about 4.4 × 4.0cm, the left renal cyst who is located on the pole, the size of about 9.6 × 6.9cm. Right now, my left kidney is sometimes sore. I ask you: how to treat renal cysts? Day County Zhang × ×