What are the BIRADS descriptors for fibroglandular tissue on magnetic resonance mammography (breast MRI)?

Updated: Feb 25, 2019
  • Author: Preeti Gupta, MD, FRCR; Chief Editor: Eugene C Lin, MD  more...
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Answer

Answer

The amount of fibroglandular tissue is assessed on the noncontrast non–fat-saturated T1W images. This correlates with the amount of fibroglandular tissue seen on mammography. The descriptors to describe fibroglandular tissue on MRI are added to the new BI-RADS edition, as follows:

  • Almost entirely fatty

  • Scattered fibroglandular tissue

  • Heterogeneous fibroglandular tissue

  • Extreme fibroglandular tissue


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