Prostatic carcinoma commonly arises from:March 2012
Central zone
Peripheral zone
Transitional zone
None of the above
Ans: B i.e. Peripheral zoneZones of prostate & clinical impoanceCentral zone (CZ) lies posterior to the urethral lumen & above the ejaculatory ducts.Peripheral zone (PZ) lies posteriorly & from this, most carcinoma arisesThere is a periurethral transitional zone (TZ), from which most benign prostatic hyperplasia (BPH) arises.