Prostate - illustration

The prostate can be divided up into different zones according to their function. The zones are central (CZ), peripheral (PZ) and transitional (TZ).

From http://www.training.seer.cancer.gov; funded by the U.S. National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) Program, via contract number N01-CN-67006, with Emory University, Atlanta SEER Cancer Registry, Atlanta, Georgia, U.S.A.