Polycystic kidney disease (PKD) is a genetic disorder that runs in families. Cysts associated with the condition are nearly always noncancerous. Some people go their whole lives without knowing they have PKD unless complications arise. Like other kidney cysts, these growths are small, oval or round sacs filled with fluid. Cysts due to PKD are more likely to cause problems than simple cysts are. If the condition does cause problems, individuals can experience high blood pressure, liver cysts, weakened blood vessels in the brain, or kidney failure.

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