62-year-old male with right breast encapsulated papillary carcinoma.
Findings: There is solid and papillary types of ductal carcinoma in-situ, Van Nuys grade 2 of 3, with atypical papillary proliferation and fibrous connective tissue and vascular cores.
Technique: Microscopic examination using H&E stain. Medium-power view (20×) from the core needle biopsy of a right breast complex solid and cystic mass.