Types of Breast Tumors - Types, Size, Grade | Susan G. Komen® - Breast malignant
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It's important to understand that most breast lumps are benign and not cancer (malignant). Non-cancerous breast tumors are abnormal growths. 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.