Editorial Comment.

14. Haffner MC, Weier C, Xu MM et al: Molecular evidence that invasive adenocarcinoma can mimic prostatic intraepithelial neoplasia (PIN) and intraductal carcinoma through retrograde glandular colonization. J Pathol 2016; 238: 31. 15. Trudel D, Downes MR, Sykes J et al: Prognostic impact of intraductal carcinoma and large cribriform carcinoma architecture after prostatectomy in a contemporary cohort. Eur J Cancer 2014; 50: 1610.