case_images: PMC8645490_01
case_images: A 57-year-old woman who presented with a new breast lump. Current mediolateral oblique screening mammography images of the right (a) and left (b) breast demonstrating fatty replaced breast parenchyma and a global asymmetry involving the right superior lateral breast.
case_images: JCIS-11-60-g001.jpg
case_images: PMC8645490_01_JCIS-11-60-g001.jpg
case_images: F1
case_images: A developing global asymmetry involving the right breast upper outer quadrant measuring 5.8 by 5.3 cm was identified on mammography as seen in [Figure 1 and 2].
case_images: A 57-year-old woman who presented with a new breast lump. Current craniocaudal screening mammography of the right (a) and left (b) breast demonstrating fatty replaced breast parenchyma and a global asymmetry involving the right superior lateral breast.
case_images: JCIS-11-60-g002.jpg
case_images: PMC8645490_01_JCIS-11-60-g002.jpg
case_images: F2
case_images: A developing global asymmetry involving the right breast upper outer quadrant measuring 5.8 by 5.3 cm was identified on mammography as seen in [Figure 1 and 2].
case_images: A 57-year-old woman who presented with a new breast lump. The right breast ultrasound of the global asymmetry at 10 o'clock demonstrating diffuse hyperechoic changes in the breast parenchyma without a focal mass or posterior acoustic shadowing.
case_images: JCIS-11-60-g003.jpg
case_images: PMC8645490_01_JCIS-11-60-g003.jpg
case_images: F3
case_images: US was performed and demonstrated diffusely echogenic breast tissue in the 10 o'clock location with no visible mass, associated posterior shadowing, or architectural distortion [Figure 3].
case_images: A 57-year-old woman who presented with a new breast lump. The right breast ultrasound guided biopsy at 10 o'clock with tissue sampling of the hyperechoic breast parenchyma. Posterior shadowing seen in this image is an artifact due to the biopsy needle (as indicated by arrow).
case_images: JCIS-11-60-g004.jpg
case_images: PMC8645490_01_JCIS-11-60-g004.jpg
case_images: F4
case_images: Given the unusual imaging findings combined with the clinical presentation, US-guided percutaneous core needle biopsy was performed and pathology revealed lymphocytic mastopathy [Figure 4].
case_images: A 57-year-old woman who presented with a new breast lump. Current mediolateral oblique screening mammography images of right (a) compared to previous right breast mammography from 21 months prior (b) showing new fatty replaced breast parenchyma and a global asymmetry involving the right superior lateral breast.
case_images: JCIS-11-60-g005.jpg
case_images: PMC8645490_01_JCIS-11-60-g005.jpg
case_images: F5
case_images: Her previous mammogram 21 months earlier was unremarkable [Figure 5].