Types of Breast Tumors - Types, Size, Grade | Susan G. Komen® - Sites of breast cancer tumors
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Breast cancers differ in other ways. They can be non-invasive or invasive. Tumor cells can vary in location (milk ducts or lobules) and how they look under a. There are two types of breast cancer tumors: those that are non-cancerous, or ‘benign’, and those that are cancerous, which are ‘malignant’. Malignant tumors are cancerous and aggressive because they invade and damage surrounding tissue. Metastatic cancer is when cancer cells of a.