Table 1 US characteristics of benign and malignant tumors
Size (mm) M (QR) | Depth superficial to deep fascia | Margin well-defined rim (%) | Echogenicity hypo/iso/hyper (%) | Mass texture heterogeneous (%) | Power Doppler signal absent/linear/disorganized (%) | |
|---|---|---|---|---|---|---|
Benign tumor (n = 60) | 26 (14~42) | 37 (61.7) | 54 (90.0) | 38/12/10 (63.3/20.0/16.7) | 35 (58.3) | 20/15/25 (33.3/25.0/41.7) |
Malignant tumor (n = 21) | 45 (26~67.5) | 7 (33.3) | 12 (57.1) | 21/0/0 (100/0/0) | 18 (85.7) | 1/7/13 (4.8/33.3/61.9) |
p value | < 0.001 | 0.041 | 0.002 | 0.002 | 0.032 | 0.024 |