Benign prostatic hyperplasia (BPH) involves -

Ans. is 'd' i.e., Median lobe o The prostate is incompletely divided into five lobes.o The anterior lobe lies in front of the urethra and devoid of glandular tissue hence adenoma seldom occurs here.o The Median lobe (Middle lobe) is situated between prostatic urethra and ejaculatory duct. Its upper part is related to trigone bladder. It contains glandular tissue and is most common site of benign prostatic hyperplasia (BPH) and adenoma.o The Posterior lobe is situated behind the urethra and below the ejaculatory duct. It also contains glandular tissue and is the most common site for prostatic carcinoma.o The right and left lateral lobes lie on either side of urethra. Lateral lobe contains many glands.