Is there a difference between prostate cancer and prostate cysts?

Yes. Big difference one is cancer one is a cyst -- which could be a cancer but usually not.
HUGE. Benign cysts of prostate tissue are common:1) isolated medial cysts, 2) cysts of the ejaculatory duct, 3) simple or multiple cysts of the parenchyma, 4) complicated infectious or hemorrhagic cysts, 5) cystic tumors and 6) cysts secondary to parasitic disease. Cysts are filled with fluid, cancer is usually solid.