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Proposed stratification risk of malignancy in indeterminate lesions by combining TI-RADS score with SIAPEC 2014 classification.
| Malignancy risk | Number of cases | Benign (n, %) | Malignant (n, %) | p |
|---|---|---|---|---|
| Low | 12 | 11 (91.7%) | 1 (8.3%) | 0.001 |
| TIR3A with TI-RADS categories 3; 4a; 4b | ||||
| Intermediate | 28 | 22 (78.6%) | 6 (21.4%) | |
| TIR3A with TI-RADS categories 4c; 5 | ||||
| TIR3B with TI-RADS categories 3; 4a; 4b | ||||
| High | 10 | 2 (20%) | 8 (80%) | |
| TIR3B with TI-RADS categories 4c; 5 |
