Kidney Cysts: Renal cysts are benign and common. 50% of people over 50 have at least one.There can be subtle changes that need to be monitored. The bosniak system predicts the chance cancer can occur. Class 2 cysts have no enhancement on ct. Small calcifications or septa(tissue dividing the cyst) are found. Cancer is uncommon as is pain. Cysts do not cause utis, as they don't communicate with the urine stream.
Answered 1/23/2014
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