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Malignancy risks of the US, CT, and combined US/CT categories.
| Category | US | CT | Combined US/CT |
|---|---|---|---|
| Probably benign | 1.7 (1/58) | 8.7 (2/23) | 0 (0/56) |
| Indeterminate | 22.4 (15/67) | 5.9 (6/101) | 8.0 (4/50) |
| Suspicious | 77.2 (115/149) | 82.0 (123/150) | 75.6 (127/168) |
Data are percentages (raw data). CT—computed tomography, US—ultrasonography.
