Transitional zone of prostate
Zona transitionalis prostatae
- Latin synonym: Pars transitionalis prostatae
- Synonym: Transitional part of prostate
- Acronym: TZ
- Related terms: Transition zone
Definition
The transition zone surrounds the proximal urethra and is the region of the prostate gland that grows throughout life and is responsible for the disease of benign prostatic enlargement. ~10–20% of prostate cancers originate in this zone.
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