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. 2014 Sep 26;11:26. doi: 10.4103/1742-6413.141820

Figure 1.

Figure 1

Case with false negative fine needle aspiration cytology of axillary lymph nodes, ultrasound image (a). Smear 1 from case showing lymphoid cells only (Giemsa, ×400) (b). Smear 2 from case showing groups of cells originally interpreted as aggregates of lymphoid cells (Giemsa, ×400) (c and d). Cells groups positive for the epithelial marker consistent with metastatic carcinoma (Immunocytochemically AE1/AE3 staining of smear 2 × 400) (f). Sentinel node frozen section showing axillary lymph nodes with macrometastasis (H and E, ×100) (g) Parafin embedded rest of sentinel node after frozen section showing metastatic carcinoma cells on large magnification (H and E, ×400) (h)