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The risk of malignancy according to the number of ultrasonographic (US) characteristics.
| The number of US characteristics | No. of patients | Final pathology |
The risk of malignancy (%) | |
|---|---|---|---|---|
| Malignant | Benign | |||
| 5 | 3 | 3 | 0 | 100.0 |
| 4 | 10 | 9 | 1 | 90.0 |
| 3 | 12 | 9 | 3 | 75.0 |
| 2 | 13 | 8 | 5 | 61.5 |
| 1 | 18 | 8 | 10 | 44.4 |
| 0 | 17 | 2 | 15 | 11.8 |
