Table 2. Diagnostic value of BMUS and CDUS in malignant cervical lymphadenopathy.
US: ultrasound; BMUS: B-mode ultrasound; CDUS: color doppler ultrasound; SAD: short-axis diameter; S/L: short-axis to long-axis ratio; ★: area under the curve of 0.732; #: area under the curve of 0.786; Sn: Sensitivity; Sp: Specificity; Acc: Accuracy
| S.No | US features | Malignant [N (%)] | Benign [N (%)] | Sn (%) | Sp (%) | Acc (%) | p-value | |
| 1 | Hilum | Absent | 83 (73) | 30 (27) | 95.4 | 62 | 79.5 | <0.001 |
| Present | 4 (8) | 49 (92) | ||||||
| 2 | Borders | Ill-defined | 49 (69) | 22 (31) | 56.3 | 72.1 | 63.8 | <0.001 |
| Well-defined | 38 (40) | 57 (60) | ||||||
| 3 | Color doppler | Mixed/Peripheral | 82 (69) | 37 (31) | 94.2 | 53.1 | 74.7 | <0.001 |
| Hilar | 5 (11) | 42 (89) | ||||||
| 4 | SAD | ≥1.23cm | 61 (70) | 26 (30) | 70.1 | 67.1 | 68.7 | <0.001★ |
| <1.23cm | 26 (23) | 53 (67) | ||||||
| 5 | S/L | ≥0.595 | 69 (77.5) | 20 (22.5) | 79.3 | 74.7 | 77.1 | <0.001# |
| <0.595 | 18 (23) | 59 (77) | ||||||
| 6 | Echogenicity | Hypoechoic | 76 | 69 | - | - | - | 0.998 |
| Hyperechoic | 11 | 10 | - | - | - | |||