浸润性小叶癌：癌细胞单行排列

高倍在纤维间质中可见浸润性小叶癌癌细胞单行排列的特征性病变。多形性不大。

At high magnification, the characteristic "Indian file" strands of infiltrating lobular carcinoma cells are seen in the fibrous stroma. Pleomorphism is not great.