<prompt> Which of the following facts about prostate is not true?Benign prostatic hyperplasia is common in peripheral zoneNormal adult prostate weighs around 20gmCarcinomas are more common in peripheral zonePSA is sensitive marker in prostate pathology but lacks specificity  <response>: Prostate has 3 zonesa Central zoneb Transition zone - BPHc Peripheral zone - Carcinomas. 