A carcinoma that infiltrates the breast parenchyma. The vast majority are adenocarcinomas arising from the terminal ductal lobular unit (TDLU). Often, the invasive adenocarcinoma co-exists with ductal or lobular carcinoma in situ. It is the most common carcinoma affecting women. The disease is invasive breast carcinoma (Monarch Disease Ontology identifier MONDO_0006256). Also known as: infiltrating breast cancer, infiltrating breast carcinoma, infiltrating carcinoma of breast, infiltrating carcinoma of the breast, invasive breast cancer, invasive carcinoma of breast, invasive carcinoma of the breast, invasive mammary carcinoma.