Significance of Estrogen/Progesterone Receptor Expression in Metaplastic Breast Carcinoma

Figure 2

Metaplastic carcinoma with spindle cell differentiation. (a) Hematoxylin and eosin (H & E)-stained sections at 200x magnification showing sheets of spindle cells. (b) H & E-stained section at 400x magnification showing atypical spindled cells. (c) Pan-cytokeratin (CKAE1/AE3) staining at 400x magnification showing positive staining in spindle cells. (d) Estrogen receptor (ER) staining at 400x magnification showing lack of nuclear expression.

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