High-grade PIN
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
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The incidence of high-grade PIN at our institution is about 8% (in several thousand prostate needle biopsies over a 10-yr period. This is similar to that reported in the literature. High-grade PIN does not elevate serum PSA. It cannot be detected by digital rectal examination or trans-rectal ultrasound of prostate. The diagnosis can only be made by examination of prostate tissue.