If you want an intermediate step, arrange a parametric MRI scan, which can provide strong evidence of the need for a biopsy.
I went MRI then was admitted for a 28 needle grid biopsy (ie: transperineal not bowel). That provided a good map for the surgeon (in my case).
Post Edited (shudderingThud) : 1/22/2018 7:34:13 PM (GMT-7)