高倍见中央区导管内癌细胞的多形性(筛型)，还可见瘤细胞浸润至间质与脂肪而形成浸润性导管癌。 At high magnification, the pleomorphism of the carcinoma cells within the duct in the center (in a cribriform pattern), as well as the neoplastic cells infiltrating through the stroma and fat, can be seen with this infiltrating ductal carcinoma.