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Invasive ductal carcinoma in a 56-year-old woman at screening mammography. (a, b) Craniocaudal projection two-dimensional mammogram (a) and in-plane DBT image (b) show scattered fibroglandular tissue and a circumscribed solitary right breast mass (arrow). (c) Subsequent US image shows a corresponding mass with irregular borders (arrow). Biopsy was performed and yielded a grade 2 ER+/PR+/HER2+ node-negative invasive ductal carcinoma.
