Influence of asymptomatic histologic prostatitis on serum prostate-specific antigen: a prospective study

Area of Science:

• Urology
• Pathology
• Biochemistry

Background:

• Prostate-specific antigen (PSA) is a key biomarker for prostate health.
• Subclinical prostate inflammation may impact PSA levels.
• Understanding inflammation's role is crucial for accurate PSA interpretation.

Purpose of the Study:

• To investigate the relationship between asymptomatic prostate inflammation and serum PSA levels.
• To determine if histological findings of inflammation correlate with PSA variations.

Main Methods:

• Prospective study of 51 patients without prostate cancer or clinical prostatitis.
• Transrectal ultrasound-guided prostate biopsies and serum PSA measurement.
• Histological analysis of biopsy specimens to quantify inflammatory processes and identify giant cells.

Main Results:

• A statistically significant positive correlation was found between the extent of prostate inflammation and serum PSA levels (P=0.02).
• Median PSA levels increased progressively with greater inflammation: 4.96 ng/mL (≤20% inflammation), 7.40 ng/mL (20-50%), and 8.03 ng/mL (>50%).
• The presence of foreign body-type giant cells did not show a statistically significant association with elevated PSA levels.

Conclusions:

• The degree of asymptomatic prostate inflammation is directly associated with elevated serum PSA levels.
• Histological evidence of inflammation, quantified by specimen involvement, is a significant factor in PSA elevation.
• Foreign body-type giant cells do not appear to significantly influence serum PSA levels in this cohort.