A 42-year-old woman undergoes screening mammography. A 6 mm oval, circumscribed, fat-containing mass is identified in the upper outer quadrant of the right breast. No associated calcifications or architectural distortion is seen. No prior imaging is available for comparison. What is the most appropriate BI-RADS assessment and management?
- A BI-RADS 4, suspicious; tissue diagnosis recommended
- B BI-RADS 3, probably benign; short-interval follow-up in 6 months
- C BI-RADS 2, benign; routine screening ✓
- D BI-RADS 0, incomplete; additional imaging needed
Correct answer: C. BI-RADS 2, benign; routine screening
Explanation
An oval, circumscribed, fat-containing mass on mammography is diagnostic of a hamartoma (fibroadenolipoma) or lymph node with fatty hilum, both benign entities. When a finding is unequivocally benign, BI-RADS 2 is assigned and routine screening continues. BI-RADS 3 is reserved for findings with less than 2% malignancy risk that lack classic benign features. C fat-containing circumscribed mass is a classic benign finding, so BI-RADS 2 is correct.
Reference: ACR BI-RADS Atlas, 5th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.