Invasive ductal carcinoma, well differentiated, combined histologic grade I of III, high power. Digital Atlas of Breast Pathology by Meenakshi Singh, MD - Department of Pathology, Stony Brook University Medical Center

Invasive ductal carcinoma, combined histologic grade 1 of 3, high power.
Invasive carcinoma does not contain an identifiable myoepithelial layer.

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