Figure 1:

Mammography and MR imaging in a 46-year-old woman with a palpable mass in the right breast. A, Mediolateral oblique (left) and spot compression (right) mammograms in the right breast show a spiculated mass in the upper-outer quadrant. B, Sagittal dynamic breast MR images in the right breast show an enhancing mass with spiculated margins (the index lesion, IDC) in the right upper outer quadrant, an additional focus near the nipple (DCIS), and nonmass enhancement in the inferior quadrants (DCIS). The additional lesions were not visible at US and were biopsied with MR imaging guidance.