MRI Case 3

45 y/o F presents for screening MRI. What is the distribution of the non-mass enhancement?


  • Cone or triangular area with apex pointing at the nipple
  • Distribution suggests enhancement within or around a duct or ducts and their branches
  • Possibility of extensive or multifocal breast cancer in a lobe or segment of the breast – DCIS
  • Next step: biopsy if unsampled, should NOT be followed

Related Radiology Article: Greenwood HI, Heller SL, Kim S, Sigmund EE, Shaylor SD, Moy L. Ductal carcinoma in situ of the breasts: review of MR imaging features. Radiographics. 2013 Oct;33(6):1569-88.