The prostate is a gland located between the bladder outlet / neck and the external sphincter of the urethra and is similar in size to a chestnut. Weight 20 gr. The prostate consists of 3 zones where the outer zone (P-zone) and the inner zone (T-zone) play an important role.
90% of prostate carcinoma develops in the P-zone. The T zone can develop with age to such an extent that the bladder becomes more difficult to dispose of urine (obstruction).