Management Strategy for Prostate Imaging Reporting and Data System Category 3 Lesions

Area of Science:

• Urology
• Radiology
• Oncology

Background:

• Prostate Imaging Reporting and Data System (PI-RADS) category 3 lesions pose a diagnostic challenge due to their ambiguous nature.
• These lesions represent 22-32% of cases, with 10-30% harboring clinically significant prostate cancer (csPCa).

Purpose of the Study:

• To review current evidence and strategies for managing PI-RADS 3 lesions.
• To provide guidance on distinguishing between low-risk and potentially high-risk PI-RADS 3 lesions.

Main Methods:

• Radiology peer review and dynamic contrast-enhanced (DCE) MRI compliance confirmation.
• Evaluation of advanced MRI models (VERDICT, Tofts) and risk stratification tools (PSAD, 68Ga-PSMA PET/CT, MPS, Proclarix, AI/ML).
• Multidisciplinary team approach incorporating clinical and imaging data.

Main Results:

• Imaging and clinical indicators are effective for risk stratifying PI-RADS 3 lesions.
• Low-risk lesions may be managed with a safety net approach including annual repeat MRI.
• Potentially risky lesions warrant biopsy based on specific indicators and multidisciplinary assessment.

Conclusions:

• A combined approach using expert opinion, clinical-imaging indicators, and emerging technologies is crucial for PI-RADS 3 lesion management.
• Personalized management strategies are essential for optimizing patient outcomes and avoiding unnecessary interventions.