Fig. 2From: Metastatic breast tumors from extramammary malignancies: a case seriesPathological findings of needle biopsy. Core needle biopsy revealed papillary proliferation of atypical cells (a, hematoxylin and eosin staining ×200). Tumor cells were positive for both TTF-1 (b), Pax-8 (c) and thyroglobulin (d). A horizontal bar indicates 200 μmBack to article page