what is prostatic intraepithelial neoplasia
Prostatic Intraepithelial Neoplasia (PIN). Prostatic intraepithelial neoplasia (PIN) is a condition in which some of the prostateâs epithelial cells look abnormal under the microscope.Epithelial cells are the cells that line the tiny sacs in the prostate and the ducts that carry fluid in the prostate.rostatic Intraepithelial Neoplasia (PIN). Prostatic intraepithelial neoplasia (PIN) is a condition in which some of the prostateâs epithelial cells look abnormal under the microscope.