You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following zone is commonly involved in benign prostatic hyperophy? and explain in detail?
The peripheral zone accounts for 70% of the volume of the young adult prostate, the central zone accounts for 25%, and the transition zone accounts for 5%. Sixty to seventy percent of carcinomas of the prostate (CaP) originate in the peripheral zone, 10-20% in the transition zone, and 5-10% in the central zone. Benign prostatic hyperplasia (BPH) uniformly originates in the transition zone. Ref: Presti J.C., Kane C.J., Shinohara K., Carroll P.R. (2008). Chapter 22. Neoplasms of the Prostate Gland. In E.A. Tanagho, J.W. McAninch (Eds), Smith's General Urology, 17e.