The McNeal prostate: a review

Area of Science:

• Urology
• Anatomy
• Medical History

Background:

• Prostate anatomy understanding has evolved significantly over two centuries.
• Historically, lobar anatomy was the accepted model in the 19th and early 20th centuries.
• John E. McNeal proposed a four-zone model of prostate anatomy starting in 1968.

Purpose of the Study:

• To describe the historical development of prostate anatomical concepts.
• To trace the evolution of John E. McNeal's anatomical theories.
• To highlight the introduction of the transition zone and its significance.

Main Methods:

• Literature review focusing on historical anatomical descriptions of the prostate.
• Analysis of seminal works by John E. McNeal regarding prostate zonal anatomy.
• Chronological examination of anatomical models and their acceptance.

Main Results:

• The transition from lobar anatomy to zonal anatomy is documented.
• McNeal's four-zone model, including the transition zone, gained prominence.
• The transition zone was identified in 1978 as a key site for benign prostatic hyperplasia development.

Conclusions:

• McNeal's zonal anatomy model significantly advanced the understanding of prostate structure.
• The recognition of the transition zone provided crucial insights into benign prostatic hyperplasia.
• This review clarifies the historical trajectory of prostate anatomical conceptualization.