because the tumor spreads primarily through the bloodstream. Other Benign Conditions Fat Necrosis: Often follows trauma and presents as a firm, fixed mass that mimics cancer, requiring biopsy for confirmation. Galactocele: A milk-filled cyst that appears weeks or months after the cessation of breastfeeding. Mondor’s Disease: A self-limiting superficial thrombophlebitis of the breast and chest wall veins. Rss Apple Podcaster →