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Table 1 Histological characteristics of intraductal component in ductal carcinoma in situ (DCIS) and in ductal carcinoma in situ with microinvasion (DCIS-Mi)

From: Identification of biomarkers in ductal carcinoma in situ of the breast with microinvasion

 

DCIS

DCIS-Mi

 

Number of patients

52

28

 

Median follow-up period, months (range)

62 (3–140)

54 (14–182)

 

Median age, years (range)

56 (36–86)

50 (32–71)

 

Architectural classification

   

   comedo

8 (15.4%)

10(35.7%)

P = 0.073

   Papillary

21 (40.4%)

10 (35.7%)

(comedo vs others)

   cribriform

15 (28.8%)

4 (14.3%)

 

   solid

4 (7.7%)

4 (14.3%)

 

   low papillary

4 (7.7%)

0 (0)

 

Nuclear Grade

   

   Grade 1

21 (40.4%)

7 (25)

P = 0.16

   Grade 2

29 (55.8%)

18 (64.3)

(1 vs. 2,3)

   Grade 3

2 (3.9%)

3 (10.7)

 

Necrosis

   

   absent

25 (48.1%)

4 (14.3%)

P = 0.0017

   Present

27 (51.9%)

24 (85.7%)

 

Van Nuys Classification*

   

   Grade 1

25 (48.1%)

4 (14.3%)

P = 0.0017

   Grade 2

25 (48.1%)

21 (75%)

(1 vs. 2,3)

   Grade 3

2 (3.9%)

3 (10.7%)

 
  1. * Van Nuys Classification: Grade 1 = non-high nuclear grade without necrosis; Grade 2 = non-high nuclear grade with necrosis; Grade 3 = high-nuclear grade.