FIGURE 4
FROM:
Estrogen receptor-
is expressed in stromal cells of fibroadenoma and phyllodes tumors of the breast
Anna Sapino, Martino Bosco, Paola Cassoni, Isabella Castellano, Riccardo Arisio, Gábor Cserni, Angelo P Dei Tos, Nicoletta Fortunati, Maria G Catalano and Gianni Bussolati
BACK TO ARTICLEFigure 4.

Smooth muscle differentiation of stromal cells. (a) Double immunostaining of a cellular fibroadenoma; ER-
(brown nuclei) and smooth muscle actin (black cytoplasm) are coexpressed by stromal cells. (b) Benign phyllodes tumor; smooth muscle actin immunostaining. (c) Primary malignant phyllodes tumor and (d) its metastasis; calponin immunostaining.
