Polycystic Kidney Disease or PKD is a inherited disorder where clumps of cysts form on the kidneys. The most common effect of PKD is high blood pressure. PKD can skip generations. It can lead to kidney failure as well. There is a possibility it will lead to cyst growth on other organs.
This is a regular kidney compared to a polycystic kidney. Clearly the right kidney is full of cysts and has grown in size.
There is no cure for polycystic kidney disease, but medications and kidney transplants may help.