浸润性导管癌
肿瘤细胞不规则的向深部组织浸润，同时在纤维间质内浸润生长，呈巢状和团索状排列。右下角可以见到紫色的钙化灶。
Microscopically, the infiltrating ductal carcinoma extends irregularly through the tissue as cords and nests of neoplastic cells with intervening collagen. There is a purplish microcalcification at the lower center right.