MRI is a highly sensitive imaging modality to detect malignancy within the breast and unlike mammography uses no radiation. Radio frequency waves capture a three dimensional image of the breast after injection of an intravenous contrast agent called gadolinium. The gadolinium is taken up in areas of the breast where there is increased blood flow. Malignant tumors are known to exhibit an increased number of blood vessels and therefore will enhance on MRI. If there is a suspicious area of enhancement we can then sample the area using a minimally invasive needle biopsy technique which is performed under MRI guidance.