From: Breast cancer detection using sonography in women with mammographically dense breasts
BI-RADS sonographic descriptors | Frequency: n (%) | Malignant outcome: n (%) | Benign outcome: n (%) | P-Value |
---|---|---|---|---|
Shape | 0.004 | |||
Oval | 15 (13.9) | 2 (13.3) | 13 (86.7) | |
Round | 50 (46.3) | 25 (50.0) | 25 (50.0) | |
Irregular | 43 (39.8) | 41 (95.4) | 2 (4.6) | |
Orientation | 0.001 | |||
Parallel to skin | 67 (62) | 13 (19.4) | 54 (80.6) | |
Not parallel | 41 (38) | 40 (97.6) | 1 (2.4) | |
Margin | <0.001 | |||
Circumscribed | 53 (49.1) | 5 (9.4) | 48 (90.6) | |
Non circumscribed | 55 (50.9) | 52 (94.5) | 3 (5.5) | |
Lesion boundary | 0.004 | |||
Abrupt interface | 80 (74.1) | 53 (66.3) | 27 (33.7) | |
Echogenic halo | 28 (25.9) | 26 (92.8) | 2 (7.2) | |
Echo texture | 0.448 | |||
Anechoic | 14 (13.0) | 7 (50.0) | 7 (50.0) | |
Hypoechoic | 74 (68.5) | 53 (71.6) | 21 (28.4) | |
Complex | 17 (15.7) | 16 (94.1) | 1 (5.9) | |
Hyperechoic | 3 (2.8) | 0 (0.0) | 3 (100) | |
Posterior acoustic feature | 0.458 | |||
No posterior feature | 40 (37.0) | 24 (60.0) | 16 (40.0) | |
Enhancement | 32 (29.6) | 21 (65.6) | 11 (34.4) | |
Shadowing | 18 (16.7) | 17 (94.4) | 1 (5.6) | |
Combined | 18 (16.7) | 16 (88.9) | 2 (11.1) | |
Surrounding tissues | 0.448 | |||
Normal | 65 (60.2) | 15 (23.1) | 50 (76.9) | |
Architectural distortion | 20 (18.5) | 19 (95.0) | 1 (5.0) | |
Skin thickening | 11 (10.2) | 7 (63.6) | 4 (36.4) | |
Subcutaneous oedema | 11 (10.2) | 8 (72.7) | 3 (27.3) | |
Nipple retraction | 1 (0.9) | 1 (100.0) | 0 (0.0) | |
Calcification | 0.406 | |||
Micro calcification | 35 (32.4) | 34 (97.1) | 1 (2.9) | |
Macro calcification | 2 (1.9) | 2 (100.0) | 0 (0.0) | |
No calcification | 71 (65.7) | 43 (60.6) | 28 (39.4) | |
Lesion vascularity | 0.002 | |||
Increased vascularity in mass | 41 (37.9) | 37 (90.2) | 4 (9.8) | |
Avascular | 56 (51.9) | 29 (51.8) | 27 (48.2) | |
Increased surrounding vascularity | 11 (10.2) | 9 (81.8) | 2 (18.2) | |
Widest diameter of mass | NA | |||
<1 cm | 6 (5.6) | 1 (16.7) | 5 (83.3) | |
1-2.5 cm | 44 (40.7) | 27 (61.4) | 17 (38.6) | |
>2.5 cm | 58 (53.7) | 52 (89.7) | 6 (10.3) | |
Abnormal lymph nodes | NA | |||
Present | 73 (67.6) | 60 (82.2) | 13 (17.8) | |
Absent | 35 (32.4) | 19 (54.3) | 16 (45.7) |