高倍镜下见乳腺浸润性导管癌分化较差，癌细胞异型性大。确定这些细胞雌激素与孕激素受体阳性与否对治疗与预后也很重要。 At high magnification, this infiltrating ductal carcinoma of breast is poorly differentiated, with very pleomorphic cells. It would also be important for treatment and prognosis to determine if these cells were estrogen and progesterone receptor positive.