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. 2016 Feb 4;7(2):205–214. doi: 10.1007/s13244-016-0466-9

Table 1.

The PIRADS overall assessment categories

PIRADS 1 Clinically significant prostate cancer is highly unlikely to be present
PIRADS 2 Clinically significant prostate cancer is unlikely to be present
PIRADS 3 Clinically significant prostate cancer is equivocal
PIRADS 4 Clinically significant prostate cancer is likely to be present
PIRADS 5 Clinically significant prostate cancer is highly likely to be present