| Pre-NAC CESM | Pre-NAC MRI | Post-NAC CESM | Post-NAC MRI |
---|---|---|---|---|
Mass enhancement | 89% (41/46) | 89% (41/46) | Â | Â |
  Shape | ||||
  Round | 24% (11/46) | 26% (12/46) | 15% (7/46) | 15% (7/46) |
  Oval | 26% (12/46) | 26% (12/46) | 22% (10/46) | 11% (5/46) |
  Irregular | 39% (18/46) | 37% (17/46) | 26% (12/46) | 22% (10/46) |
  None |  |  | 26% (12/46) | 41% (19/46) |
  Margins | ||||
  Circumscribed | 46% (21/46) | 48% (22/46) | 35% (16/46) | 24% (11/46) |
  Non-circumscribed | 43% (20/46) | 41% (19/46) | 28% (13/46) | 24% (11/46) |
  None |  |  | 26% (12/46) | 41% (19/46) |
Non-mass enhancement | 11% (5/46) | 11% (5/46) | Â | Â |
  Distribution | ||||
  Regional | 9% (4/46) | 9% (4/46) | 7% (3/46) | 4% (2/46) |
  Segmental | 2% (1/46) | 2% (1/46) | 2% (1/46) | 2% (1/46) |
  None |  |  | 2% (1/46) | 4% (2/46) |
Enhancement pattern | ||||
 Heterogeneous | 83% (38/46) | 80% (37/46) | 61% (28/46) | 43% (20/46) |
 Clustered ring | 17% (8/46) | 20% (9/46) | 11% (5/46) | 11% (5/46) |
 None |  |  | 28% (13/46) | 46% (21/46) |
Contrast uptake | ||||
 Strong | 78% (36/46) | 83% (38/46) | 2% (1/46) | 4% (2/46) |
 Intermediate | 22% (10/46) | 17% (8/46) | 63% (29/46) | 48% (22/46) |
 Weak |  |  | 7% (3/46) | 2% (1/46) |
 None |  |  | 28% (13/46) | 46% (21/46) |