Is there a relationship between prostate volume and Gleason score?

Area of Science:

• Urology
• Oncology
• Medical Imaging

Background:

• Prostate cancer grading is crucial for treatment decisions.
• The relationship between prostate size and tumor aggressiveness requires further investigation.

Purpose of the Study:

• To examine the association between Gleason grade and prostate volume.
• To test if smaller prostates correlate with a higher incidence of high-grade tumors.

Main Methods:

• Retrospective analysis of 390 patients undergoing radical prostatectomy (RP).
• Review of transrectal ultrasonography (TRUS)-guided biopsy and RP specimen data.
• High-grade tumors defined as Gleason score ≥ 7.

Main Results:

• TRUS prostate volume showed a statistically significant inverse relationship with high-grade tumors.
• Prostate volume independently predicted high-grade tumors in both biopsy and RP specimens.
• This association was consistent across both biopsy and surgical specimens.

Conclusions:

• A significant relationship exists between prostate volume and the rate of high-grade prostate cancer.
• This association is not an artifact of the biopsy procedure.
• Smaller prostate size is a predictor of more aggressive tumors.