What is the appearance of lipoma and hamartoma on magnetic resonance mammography (breast MRI)?

Updated: Feb 25, 2019
  • Author: Preeti Gupta, MD, FRCR; Chief Editor: Eugene C Lin, MD  more...
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Lipomas and fibroadenolipomas (hamartomas) are benign, mesenchymal lesions, and they are usually readily diagnosed with conventional imaging. Characteristically, the lesions have internal fat. Hamartomas can show varying enhancement on MRI because of the glandular component.

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