Ductal breast carcinoma metastasized to the rectum: A case report and review of the literature

Figure 3 Fast-frozen pathology of the specimen (100 ×). A-C: Top left corner: Normal rectal mucosal layer; bottom right corner: Tumor infiltrating layer. A: Sections under hematoxylin and eosin (staining suggested that cancer cells had invaded the submucosal layer; B: Estrogen-receptor-positive rate was 90% in all cancer cells; C: Progesterone-receptor-positive rate was 90% in all cancer cells.