Breast lumps epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Epidemiology and Demographics

• 40% of breast complaints leading to an office visit
• 6% of all women ages 40-69 seek advice about breast lumps
• Cysts and fibroadenomas = most common underlying conditions
• 75-80% of breast biposies in the US are for benign lesions
• Breast cancer detected in

  • 4% of women with breast complaints
  • 8% of women with abnormal screening mammograms
  • 2% of women with abnormal findings on screening clinical breast exam