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Table 3 Association between mammographic characteristics and histo-pathologcal grade according to the E.P.W.G. classification.

From: Correlation between imaging and pathology in ductal carcinoma in situ of the breast

Mammographic characteristics

EPWG classification

P-value

 

Grade 1

Grade 2

Grade3

 

Microcalcifications (n = 115)

    

Yes

10(53%)

38(73%)

39(89%)

0.008

No

9(47%)

14(27%)

5(11%)

 

Anormality other than microcalcifications (n = 115)

    

Yes

10(53%)

18(35%)

10(23%)

0.065

No

9(47%)

34(65%)

34(77%)

 

Linear microcalcifications (n = 87)

    

Yes

2(20%)

5(13%)

26(67%)

<0.001

No

8(80%)

33(87%)

13(33%)

 

Coarse granular microcalcifications (n = 87)

    

Yes

8(80%)

32(84%)

32(82%)

 

No

2(20%)

6(16%)

7(18%)

0.940

Fine granular microcalcifications (n = 87)

    

Yes

5(50%)

15(39%)

7(18%)

 

No

5(50%)

23(61%)

32(82%)

0.048

Number of microcalcifications (n = 87)

    

10

2(20%)

1(3%)

1(3%)

 

>10

8(80%)

37(97%)

38(97%)

0.143

Distribution of microcalcifications (n = 87)

    

Cluster

8(80%)

23(61%)

19(49%)

 

Segment

2(20%)

15(39%)

20(51%)

0.163