Evaluation of Prostate Needle Biopsies

The introduction of Prostate Specific Antigen (PSA) screening has caused a stage shift in diagnosis of prostate cancer and an increasing number of patients receiving early diagnosis. This has led to early detection of limited foci of cancer on prostate biopsy, and clinically insignificant prostate cancer at radical prostatectomy. Therefore, current methods for sampling, diagnosing and managing prostate cancer have significantly evolved in recent years. In light of recent management changes and conservative surveillance protocols prompting new handling, grading and staging guidelines, the evaluation of prostate biopsy in contemporary practice has become pivotal. It is therefore critical to recognize minor foci of cancer or atypical glands, and distinguish these from benign mimics that could lead to a false positive diagnosis.In this chapter, current biopsy modalities and imaging techniques, tissue handling and recent updates in the interpretation of prostate biopsy will be discussed.