Pleomorphic Adenoma of Breast: A Radiological and Pathological Study of a Common Tumor in an Uncommon Location

Figure 1

Pleomorphic adenoma of the breast. (a) Ultrasound showing a well-circumscribed, hypoechoic mass. (b) Cut sectioning showed a firm, well-circumscribed mass with whitish, homogeneous surface (bar: 1.0 cm). ((c) and (d)) Histological section shows the tumor to be composed of stromal and epithelial elements. The stromal component is comprised of bland spindle cells embedded in a myxochondroid matrix. (e) The epithelial component shows scattered compressed glands interspersed in the stroma. (f) Calponin immunostain highlights stromal and periglandular myoepithelial cells. The epithelial cells are negative for calponin.

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