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Figure 6a. Images in a patient with axillary node metastases and an MR imaging-detected suspicious mass that resolved during chemotherapy. Mammography revealed dense breast tissue without a suspicious finding. (a) Sagittal fat-suppressed contrast-enhanced three-dimensional fast spoiled gradient-recalled-echo MR image (11/2.2) shows a 1.5-cm, spiculated mass (arrow) deep in the breast. (b) Four-month follow-up sagittal fat-suppressed contrast-enhanced three-dimensional fast spoiled gradient-recalled-echo MR image (27.8/4) obtained during chemotherapy shows no substantial change in the size of the mass (arrow). (c) Seven-month follow-up sagittal fat-suppressed contrast-enhanced three-dimensional fast spoiled gradient-recalled-echo MR image (9.2/2.2) shows resolution of the mass. No surgical procedure was performed.