What does it mean if my biopsy report also says high-grade prostatic intraepithelial neoplasia or high-grade PIN?

Prostate cancer is a disease that is most successfully treated when it is detected early on.  As the research community explores various methods to detecting the disease, PCEC continues to encourage men to play an active role in their health by looking to those trusted sources of prostate cancer testing – the PSA and DRE.