Explore a comprehensive lecture on prostate cancer diagnosis and management, delivered by Stanford Health Care radiation oncologist Dr. Yushen Qian. Gain insights into risk factors, cancer risk assessment, age-related PSA levels, prostate biopsy procedures, Gleason scoring, and cancer staging. Understand the distinctions between Watchful Waiting and Active Surveillance approaches, and learn when treatment interventions may be necessary. Delve into topics such as prostate cancer statistics, screening benefits and risks, shared decision-making processes, risk classification, survival rates, and various treatment options including definitive therapy and radiation therapy. The lecture also covers the UK Protect Trial findings and addresses questions on biomarker testing, diet's role in prostate cancer, and the continued relevance of active surveillance in prostate cancer management.