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Fig. 3 —53-year-old asymptomatic woman with prior right mastectomy.
Sagittal fat-suppressed T1-weighted MRI of left breast shows 6 cm area of
nonmass, segmental, clumped enhancement (arrows) with wash-out
kinetics. MRI-guided vacuum-assisted biopsy yielded ductal carcinoma in situ
(DCIS). At mastectomy, surgical histopathology yielded DCIS, cribriform, and
micropapillary type, with intermediate nuclear grade and moderate necrosis and
0.2 cm infiltrating ductal carcinoma. Sentinel lymph-node biopsy performed at
time of mastectomy was negative. This case, in which biopsy sampled small part
of a large lesion, was the only DCIS underestimate encountered in our series
of MRI-guided 9-gauge vacuum-assisted biopsy.
