The term “prostatic intraepithelial neoplasia” or PIN was selected at a conference in 1989 from a whole variety of other names for the same condition. However, human nature being what it is, some of these other names continue in use today. Therefore, any particular urologist or pathologist may use one of the following terms to mean PIN:

  • dysplasia
  • intraductal dysplasia
  • large acinar atypical hyperplasia
  • atypical primary hyperplasia
  • hyperplasia with malignant change
  • marked atypia
  • duct-acinar dysplasia

From the patient’s point of view, it doesn’t matter what it is called so long as you recognize what it is if your doctor starts to talk about it with you. After you’ve read through this section, we think you should be reasonably clear about this.

So What on Earth is PIN?

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light blue prostate