Answer
3. High grade PIN predominates in the transition zone. Several studies have noted an increase of high grade PIN in the peripheral zone of the prostate, corresponding to the site of origin for most adenocarcinomas of the prostate.
3. High grade PIN predominates in the transition zone. Several studies have noted an increase of high grade PIN in the peripheral zone of the prostate, corresponding to the site of origin for most adenocarcinomas of the prostate.