Colonic metastasis of breast cancer are extremely infrequent, being ductal subtype the most rarely affects the digestive tract, compared to lobular subtype. We present a case report of a colonic metastasis of ductal breast cancer; found in the context of a screening colonoscopy. Besides we perform an article research about digestive tract metastasis of primary breast cancer, finding very few published cases among the literature about this ductal subtype behavior.