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Table 1 BIRADS assessment categories according to BIRADS atlas 2013

From: Study of role of digital breast tomosynthesis over digital mammography in the assessment of BIRADS 3 breast lesions

CategoryAssessment
BIRADS 0Incomplete—need additional imaging evaluation and/or prior mammograms for comparison
BIRADS 1Negative
BIRADS 2Benign
BIRADS 3Probably benign
BIRADS 4Suspicious
4A: low suspicion for malignancy
4B: moderate suspicion for malignancy
4C: high suspicion for malignancy
BIRADS 5Highly suggestive of malignancy
BIRADS 6Known biopsy-proven malignancy