• There is lobular and ductal cellular proliferation, but still confined within myoepithelial lined spaces
• It is probably not invasive carcinoma
• I worry more about the lobular neoplasia than a ductal lesion
• I am not quite sure whether fig. 12 and 13 have luminal necrosis
• For frozen, I may report "atypical cellular proliferation, no invasive carcinoma seen" 
• I look forward to hearing other's opinion and seeing the permanent section
• Thanks for such a educational case

 导管上皮增生性病变，有无原位癌待石蜡。

 图12、13增生的导管腔内见可以坏死，导管原位癌可能。

图15-18神经膜可疑浸润。

需待石蜡切片和IHC标记进一步诊断与鉴别诊断。