<prompt> Answer this question truthfullyWhat is an MRI for Pagets disease of the breast?  <response>: <reason> MRI may be performed to detect the breast cancer associated with Pagets disease of the breast. In the setting of clinically and mammographically occult Pagets disease MRI can be very useful, mainly since mammography and ultrasonography have limitations in the evaluation of patients with Pagets disease. MRI also has a role in the preoperative evaluation of patients and might be helpful in facilitating treatment decisions. 