327029.fig.002
Figure 2: Photomicrograph of the breast lesion (×100). Section shows sheets and cords of malignant squamous epithelial cells invading the fibrocollagenous stroma. These sheets are of variable sizes and show focal areas of necrosis as well as granulation tissue formation. The stroma shows extensive desmoplasia with moderate infiltration by acute and chronic inflammatory cells. No keratin pearl is seen.