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Table 2 MRI findings of 217 patients with a preoperative histopathologic diagnosis of DCIS

From: Predictive factors for the presence of invasive components in patients diagnosed with ductal carcinoma in situ based on preoperative biopsy

 DCIS (N = 202)Invasive component (N = 15)p
MRI tumor size  0.172
  ≤ 2 cm99 (49.0%)6 (40.0%) 
  > 2 cm101 (50.0%)8 (53.3%) 
 Not seen2 (1.0%)1 (6.7%) 
Nipple-areolar complex invasion  1.000
 Absent191 (94.6%)14 (93.3%) 
 Present11 (5.4%)1 (6.7%) 
Enlarged lymph node  0.612
 Absent166 (82.2%)11 (73.3%) 
 Present36 (17.8%)4 (26.7%) 
MRI NME  0.002
 Mass102 (50.5%)12 (80.0%) 
 NME100 (49.5%)3 (20.0%) 
Enhancement peak  0.649
  ≤ 100%37 (18.3%)4 (26.7%) 
  > 100%165 (81.7%)11 (73.3%) 
Initial enhancement pattern of dynamic curve  0.735
 Rapid162 (80.2%)11 (73.3%) 
 Medium26 (12.9%)3 (20.0%) 
 Slow14 (6.9%)1 (6.7%) 
Kinetic pattern  0.253
 Persistent68 (33.7%)4 (26.7%) 
 Plateau68 (33.7%)3 (20.0%) 
 Washout66 (32.7%)8 (53.3%) 
  1. Data are expressed as n (%)
  2. Abbreviations DCIS Ductal carcinoma in situ, US Ultrasonography, NME Non-mass enhancement