Figure 5.

Breast biopsy. a) Nodular infiltration by solid (high grade) adenocarcinoma. (Hematoxylin-eosin, ×400). b) Lymphatic tumor emboli of micropapillary pattern adenocarcinoma (single arrow) and multiple psammoma bodies (double arrow). Ectatic duct is noted in the left side. (Hematoxylin-eosin, ×100). c) Immunohistochemical nuclear TTF-1 positivity of adenocarcinoma with solid and micropapillary component. (×100). d) Immunohistochemical nuclear TTF-1 positivity of micropapillary component. (×400).

Maounis et al. Diagnostic Pathology 2010 5:82   doi:10.1186/1746-1596-5-82
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