Figure 2.

Representative examples of CDKN1C immunohistochemistry. a) placenta, (positive control) with 3+ nuclear staining; b) normal breast epithelium, with 3+ nuclear staining located in the area of myoepithelium and no staining in the luminal epithelium; c) DCIS, with no staining in the myoepithelium (see arrows) and 1–2+ focal nuclear staining in the malignant luminal epithelium; d) IDC, with 1–2+ focal nuclear staining in malignant epithelium. 200×.