Microscopic Anatomy

Thirty percent of the prostate is muscle fibre and the remaining seventy percent is made up of glandular cells grouped together in about 30 glandular units known as acina.

The prostate can be divided into three zones: the peripheral(PZ), the central(CZ) and the periurethral transitional area(TZ)

This subdivision is extremely important as prostate tumors almost always originate in the peripheral zone and BPH in the transitional. Depending on its causes, prostatitis originates in the periurethral or peripheral zones and causes different symptoms in each instance.