Breast imaging-reporting and data system (BI-RADS) assessment category 6

Last revised by David Luong on 27 Jun 2021

BI-RADS 6 is one of seven categories of the ACR (American College of Radiology) BI-RADS system and is defined as known biopsy-proven malignancy. This category is used when:

  • imaging is performed post percutaneous biopsy that demonstrated a malignancy but prior to definitive therapy1
  • imaging demonstrates no other abnormalities that might need further investigation other than the known biopsy-proven malignancy1


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