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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