Abstract
Cribriform glands are linked to poorer outcomes in prostate adenocarcinoma. We aimed to assess the prognostic role of the percentage of cribriform glands and the size of the largest invasive cribriform gland in Gleason score 7 prostate adenocarcinomas. The presence, percentage, and size of the invasive cribriform glands were investigated and their association with prognostic factors were assessed in 177 Grade Groups 2 and 3 prostate adenocarcinomas. Biochemical recurrence-free survival was statisticallysignificantly lower in cases with a cribriform gland percentage greater than 10% (P<.001) and in cases where the largest invasive cribriform gland size was greater than 0.5mm (P<.001). Mean largest cribriform gland size and percentage were statisticallysignificant associated with more advanced pT status, lymph node metastasis, biochemical recurrence, and higher preoperative prostate-specific antigen values. Our findings suggest that the presence of a cribriform pattern, increases in the percentage of such patterns, and increases in the size of the largest cribriform gland within a given tumor are associated with poor prognosis. We suggest that a more aggressive clinical approach may be needed in Grade Group 2 and 3 cases with invasive cribriform glands larger than 0.5mm and a cribriform gland percentage greater than 10%, especially in prostate needle biopsy specimens.
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