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Table 4 MRI findings of invasive ductolobular carcinomas of the breast according to the BI-RADS® (NMLE = non-mass like enhancement)

From: Invasive ductolobular carcinoma of the breast: spectrum of mammographic, ultrasound and magnetic resonance imaging findings correlated with proportion of the lobular component

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)
  1. a Isolated mass or dominant mass surrounded by smaller masses.
  2. b Excluding non-available and normal exams (n = 103).