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What does it mean if in addition to cancer my biopsy report also says “high grade prostatic intraepithelial neoplasia” or “high grade PIN”?

April 26, 2017addition biopsy cancer grade high intraepithelial mean prostatic report

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What does it mean if in addition to cancer my biopsy report also says “high grade prostatic intraepithelial neoplasia” or “high grade PIN”?

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“High grade prostatic intraepithelial neoplasia” also referred to as “high grade PIN” is a precursor to prostate cancer (ie. a precancerous lesion) and has no importance in someone who already has cancer. The word “high grade” as it refers to prostatic intraepithelial neoplasia has no relation to the Gleason system and does not indicate a more aggressive tumor.