FIGURE 1.
Cancerization of ducts, or intraductal spread of invasive ductal adenocarcinoma, showing overexpression of p53 (B), lack of expression of p53 (D) and loss of Smad4 (F). H&E stain (A, C, E). p53 immunostain (B, D). Smad4 immunostain (E).
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