Pathology: Invasive Carcinoma
Invasive breast carcinoma is a set of epithelial tumors derived from the mammary epithelial terminal duct lobular unit (TDLU). By definition, these tumors invade adjacent benign breast parenchyma, and are capable of metastasis to distant sites. Invasive breast carcinoma is classified into two broad subtypes: ductal and lobular carcinoma. Beyond these subtypes, there are many histologic patterns or phenotypes, which tend to behave similarly and these patterns are hence of importance to clinicians. This chapter provides an overview of the histology of invasive breast cancer and common subtypes.
KeywordsInvasive Ductal Carcinoma Lobular Carcinoma Invasive Lobular Carcinoma Axillary Lymph Node Metastasis Invasive Breast Carcinoma
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