ABSTRACT
The lobar concept of the anatomy of the prostate originally suggested by Lowsley1 is no longer particularly helpful. The accepted view today is that of McNeal2, who suggested that the prostate consists of three distinct zones: a central zone; transitional zone, and peripheral zone (Figures 1 and 2). The transitional zone is the site of development of benign prostatic hyperplasia, whereas the peripheral zone is where both prostatitis and prostate cancer mainly occur3.
