Which findings on magnetic resonance mammography (breast MRI) are characteristic of sarcoma?

Updated: Feb 25, 2019
  • Author: Preeti Gupta, MD, FRCR; Chief Editor: Eugene C Lin, MD  more...
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In the breast, sarcomas are rare. Metaplastic carcinomas are also rare, but they may undergo sarcomatous transformation, most typically to osteosarcoma. These generally appear as a nonspecific mass with enhancement. Sometimes, they are remarkably rounded with circumscribed margins. However, they may have markedly heterogeneous enhancement secondary to tumor necrosis.

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