Best Amazing Prostate Anatomy Transitional Zone Maryland. The tz and the periurethral gland tissue are the seat of. The transitional zone of the prostate, resting next to the urethra, makes up around 5 percent of the prostate at puberty.

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This transitional zone is where benign prostatic hyperplasia occurs and can lead to bladder outlet obstruction when an adenoma grows to a significant the peripheral zone of the prostate constitutes 70% of the glandular tissue. The zone classification is more often used in pathology. It consists of submucosal glands whose ducts open in the prostatic sinuses at the level of colliculus seminalis.

Although embryologically derived, the anatomical lobar concepts were found to be anatomically and functionally indistinct.

Outer (cortical) zones are termed peripheral and central. The transition zone (tz) surrounds the urethra as it enters the prostate gland. Although embryologically derived, the anatomical lobar concepts were found to be anatomically and functionally indistinct. T2wi is used for prostate cancer detection, localization, and staging;