Table 2.
Clinical information and ultrasonography, and color Doppler flow imaging between benign and malignant non-mass-like lesions
| Parameter |
Pathology, n (%) |
Total | χ2 | P value | ||
| Benign | Malignant | |||||
| Age in yr | ﹤45 | 18 (64.29) | 9 (39.13) | 27 (52.94) | 3.207 | 0.073 |
| ≥ 45 | 10 (35.71) | 14 (60.87) | 24 (47.06) | |||
| Palpability | No | 19 (67.86) | 12 (52.17) | 31 (60.78) | 1.303 | 0.254 |
| Yes | 9 (32.14) | 11 (47.83) | 20 (39.22) | |||
| Nipple discharge | No | 20 (71.43) | 18 (78.26) | 38 (74.51) | 0.31 | 0.577 |
| Yes | 8 (28.57) | 5 (21.74) | 13 (25.49) | |||
| Echogenicity | Hypo-echoic | 14 (50.00) | 13 (56.52) | 27 (52.94) | 0.216 | 0.642 |
| Mixed-echoic | 14 (50.00) | 10 (43.48) | 24 (47.06) | |||
| Ductal changes | No | 17 (60.71) | 12 (52.17) | 29 (56.86) | 0.375 | 0.54 |
| Yes | 11 (39.29) | 11 (47.83) | 22 (43.14) | |||
| Rear echo attenuation | No | 25 (89.29) | 16 (69.57) | 41 (80.39) | 1.99 | 0.158 |
| Yes | 3 (10.71) | 7 (30.43) | 10 (19.61) | |||
| Architectural distortion | No | 27 (96.43) | 17 (73.91) | 44 (86.27) | 1.043 | 0.307 |
| Yes | 1 (3.57) | 6 (26.09) | 7 (13.73) | |||
| Microcalcifications | No | 24 (85.71) | 10 (43.48) | 34 (66.67) | 10.137 | 0.001b |
| Yes | 4 (14.29) | 13 (56.52) | 17 (33.33) | |||
| Axillary lymph node | Normal | 26 (92.86) | 17 (73.91) | 43 (84.31) | 1.274 | 0.237 |
| Abnormal | 2 (7.14) | 6 (26.09) | 8 (15.69) | |||
| CDFI | Scarce | 19 (67.86) | 14 (60.87) | 33 (64.71) | 0.27 | 0.603 |
| Abundant | 9 (32.14) | 9 (39.13) | 18 (35.29) | |||
b
P < 0.01. CDFI: Color Doppler flow imaging.