Malignant lymphnodes
- No echogenic eccentric hilum
- Discolored colour Doppler
- Rounded : RT < 1.5
- Size usually >10 mm ∼7 mm in upper jugular chain and 6 mm in ref.
- Hypoechoeic and heterogeneous
- Cystic or necrotic areas
Sensitivity: 84%
Specificity: 68%
Accuracy: 70%
- Invasing surrounding tissue
- ill depend margin
- Calcification (PTC)
- Absent of hilum (90%)
- ↑ vascularity
Thyroid:
Sensitivity: 63-87%
Specificity: 81- 91%
Accuracy:80-94%
