Editing Prostate (section)

== Gross Structure ==

* Ovoid in shape
* '''The base of the prostate is at the bladder-prostate junction'''
* The narrowed '''apex is the most inferior portion of the prostate gland,''' reaching the urogenital diaphragm. '''The apex of the prostate is continuous with the striated urethral sphincter'''
* '''The prostate is fixed to the pubic bone anteriorly by the puboprostatic ligaments near the apex of the prostate'''
* '''Composed of (2):'''
**'''Fibromuscular stroma'''
**'''Glandular elements'''

=== Fibromuscular stroma ===

* '''≈30% of the prostate's composition'''
* Non-glandular component
* Continuous with the detrusor fibres of the bladder neck and tapers distally toward the striated sphincter area[https://www.baus.org.uk/_userfiles/pages/files/Publications/Transrectal%20Ultrasound%20%20Prostatic%20Biopsy%20FINAL.pdf]
*Tightly adherent to the glandular tissue of the prostate[https://www.baus.org.uk/_userfiles/pages/files/Publications/Transrectal%20Ultrasound%20%20Prostatic%20Biopsy%20FINAL.pdf]
**Not described as a seperate entitiy on US

=== Glandular elements ===
* '''≈70% of the prostate's composition'''[[File:Prostate zones.png|alt=Prostate Anatomy Zones|thumb|710x710px|Mikael Häggström, M.D. Author info - Reusing images- Conflicts of interest:  NoneMikael Häggström, M.D., CC0, via [[commons:File:Prostate_zones.png|Wikimedia]] Commons]]
* '''<span style="color:#ff0000">Divided into anatomic zones (largest to smallest) (3):</span>'''
*# '''<span style="color:#ff0000">Peripheral zone</span>'''
*#* '''≈70% of the glandular prostate tissue'''
*#* '''<span style="color:#ff0000">Most (≈70%) prostate cancers occur in the peripheral zone</span>'''
*# '''<span style="color:#ff0000">Central zone</span>'''
*#* '''≈25% of the glandular prostate tissue'''
*#* '''<span style="color:#ff0000">Surrounds the opening of the ejaculatory ducts</span>'''
*# '''<span style="color:#ff0000">Transitional zone</span>'''
*#* '''≈3-5% of the glandular prostate tissue'''
*#*In the young adult male, only constitutes about 5-10% of male prostate; with age and the development of BPH, the TZ can occupy a large part of the glandular prostate[https://www.baus.org.uk/_userfiles/pages/files/Publications/Transrectal%20Ultrasound%20%20Prostatic%20Biopsy%20FINAL.pdf]
*#*Anterior to the peripheral zone
*#* '''Separated''' </span>'''from the rest of the glandular compartments of the prostate by a distinct fibromuscular band</span>'''
*#* '''<span style="color:#ff0000">Benign prostatic hyperplasia most commonly occurs in the transitional zone</span>'''
*#* '''<span style="color:#ff0000">≈20% of prostate cancers occur in the transitional zone</span>'''