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Table 1 Optimal number of biopsy cores based on patient age and total prostate volume

From: Review by urological pathologists improves the accuracy of Gleason grading by general pathologists

Prostate volume (mL)

Age (yrs)

<60

60-64

65-69

≥70

0-25

12

10

8

6

25-50

12

12

10

8

50<

12

12

12

10