Table 4 MRI findings of invasive ductolobular carcinomas of the breast according to the BI-RADS® (NMLE = non-mass like enhancement)
Lesion Type | n = 113 |
|---|---|
Normal | 1.8% (2/113) |
Massa | 55.8% (63/113) |
Mass + NMLE | 33.6% (38/113) |
NMLE | 5.3% (6/113) |
Architectural distortion | 2.6% (3/113) |
Architectural distortion + NMLE | 0.9% (1/113) |
Mass T1 | n = 101 |
Low | 99.0% (100/101) |
Mod | 0% (0/101) |
High | 0% (0/101) |
High central low peripheric | 1.0% (1/101) |
Mass T2 | n = 101 |
Low | 7.9% (8/101) |
Mod | 43.6% (44/101) |
High | 37.6% (38/101) |
Low central high peripheric | 10.9% (11/101) |
Mass Shape | n = 101 |
Round/Oval | 6.0% (6/101) |
Lobular | 7.9% (8/101) |
Irregular | 86.1% (87/101) |
Mass Margin | n = 101 |
Smooth | 8.9% (9/101) |
Irregular | 36.6% (37/101) |
Spiculated | 54.5% (55/101) |
Mass Enhancement | n = 101 |
Homogeneous | 15.8% (16/101) |
Heterogeneous | 59.4% (60/101) |
Rim enhancement | 24.8% (25/101) |
Dark internal septation | 0% (0/101) |
Enhancing internal septation | 0% (0/101) |
Central enhancement | 0% (0/101) |
NMLE Distribution | n = 45 |
Focal area | 71.1% (32/45) |
Linear | 11.1% (5/45) |
Ductal | 4.5% (2/45) |
Segmental | 2.2% (1/45) |
Regional | 2.2% (1/45) |
Multiple Regions | 6.7% (3/45) |
Diffuse | 2.2% (1/45) |
NMLE Internal Enhancement | n = 45 |
Homogeneous | 69.0% (31/45) |
Heterogeneous | 22.2% (10/45) |
Stippled, punctate | 0% (0/45) |
Clumped | 4.4% (2/45) |
Reticular, dendritic | 0% (0/45) |
Rim enhancement | 4.4% (2/45) |
NMLE Symmetry | n = 45 |
Symmetric | 0% (0/45) |
Asymmetric | 100.0% (45/45) |
Kinetic Pattern Initial Rise | n = 113 |
Not available | 7.1% (8/113) |
Slowb | 0% (0/103) |
Mediumb | 13.6% (14/103) |
Rapidb | 86.4% (89/103) |
Kinetic Pattern Delayed Phase | n = 113 |
Not available | 7.1% (8/113) |
Persistentb | 6.8% (7/103) |
Plateaub | 32.0% (33/103) |
Washoutb | 61.2% (63/103) |