76-year-old female with right breast infiltrating differentiated duct carcinoma with mucinous features.
Findings: There is moderately differentiated invasive ductal carcinoma, grade 2 of 3, Nottingham score of 7. Mucin lakes are noticed in the center of the tissue obtained.
Technique: Microscopic examination using H&E stain. Medium-power view (35×) from the core needle biopsy of the right breast complex solid and cystic mass.