MR Imaging of Prostate Zonal Anatomy

Area of Science:

• Radiology
• Anatomy

Background:

• Prostate zonal anatomy, described by McNeal 40 years ago, remains the standard model.
• This anatomy includes four distinct zones related to the urethra and ejaculatory ducts.
• Accurate interpretation of prostate Magnetic Resonance (MR) imaging relies on understanding this zonal and periprostatic anatomy.

Purpose of the Study:

• To emphasize the importance of understanding prostate zonal anatomy.
• To highlight the role of MR imaging in depicting these zones.
• To clarify the distinction between the central zone and transition zone in radiological descriptions.

Main Methods:

• Review of established anatomical descriptions of the prostate.
• Analysis of the depiction of prostate zones on MR imaging.
• Comparison of current radiological literature with historical anatomical descriptions.

Main Results:

• The zonal anatomy model is well-represented on MR imaging.
• The central zone is a distinct anatomical region, previously often grouped with the transition zone.
• Accurate zonal and periprostatic anatomy knowledge is essential for MR imaging interpretation.

Conclusions:

• A thorough grasp of prostate zonal and periprostatic anatomy is fundamental for accurate prostate MR imaging.
• MR imaging effectively visualizes the distinct zones of the prostate.
• Distinguishing anatomical zones improves diagnostic accuracy in prostate imaging.