Ductal Carcinoma In Situ

High-power view of an in situ papillary carcinoma. Note the layering of cells, loss of nuclear polarity, marked hyperchromasia, and lack of a myoepithelial cell layer.

High-power view of an in situ papillary carcinoma. Note the layering of cells, loss of nuclear polarity, marked hyperchromasia, and lack of a myoepithelial cell layer.

Source: Rosai: Surgical Pathology 9th edition