Immunohistochemical expression of Trop-2 protein in a case of invasive breast carcinoma (antibody clone Anti-human Trop-2, R&D Systems). Note the membranous expression of Trop-2 protein in cancer cells; the normal breast duct (in the mid part of the figure) lacks Trop-2 expression (10x magnification).
Figure 1.
![Figure 1.](https://blog.bjbms.org/wp-content/uploads/2020/04/fig1.jpg)
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