Breast density

From RadsWiki

Jump to: navigation, search

[edit] BI-RADS categories for breast density

  1. Breast is almost entirely fat (< 25% fibroglandular tissue)
  2. Breast has scattered fibroglandular dense tissue (25-50% fibroglandular tissue)
  3. Breast tissue is heterogeneously dense (51-75% fibroglandular tissue)
  4. Breast tissue is extremely dense (> 75% fibroglandular tissue)

[edit] Factors that can change breast density

  • Increased density:
    • Hormone replacement therapy
    • Pregnancy
    • Lactation
    • Weight loss
    • Breast cancer
    • Inflammation


  • Decreased density
    • Increasing age
    • Weight gain

[edit] Images