<prompt> Progressive enhancement pattern for a lesion on Breast MRI showsType I curveType II curveType III curveType IV curve  <response>: Breast MRI enhancement curves Following administration of Gadolinium there can be three possible enhancement kinetic curves for a lesion on breast MRI. Type 1 curve: progressive enhancement pattern Typically shows a continuous increase in signal intensity throughout time Usually considered benign with only a small propoion of 9 of malignant lesions having this pattern Type II curve: plateau pattern Initial uptake followed by the plateau phase towards the latter pa of the study Considered concerning for malignancy Type III curve: washout pattern Has a relatively rapid uptake shows reduction in enhancement towards the latter pa of the study Considered strongly suggestive of malignancy 