I have a 3 cm cyst in my left kidney mid pole with frequent bouts of flank pain (negative for stone ) in addition for the last 3 years there is always blood in my urine ranging from trace to gross amounts, while most kidney cyst are benign there is a history of renal disease in my family and my sister died at 3 months from renal failure , I have been treated for renal artery stenosis and Pyle nephritis, the cyst was 2.5 cm 7 to 8 months ago and my urologist says it s probably a benign cyst come back in 18 months should I get a second opinion ? My dad is in renal failure and my cousin died of liver failure but had renal disease.
In view of strong family history you can not take the findings to be benign in nature. I suggest you to go for second opinion so that timely evaluation be done