Research Article
Imaging-Cytology Correlation of Thyroid Nodules with Initially Benign Cytology
Table 3
Risk of malignancy according to initial US features and imaging-cytologic correlation in thyroid nodules with benign cytologic results.
| ā | Number of nodules | Number of malignant nodules | Risk of malignancy (%) |
| Benign cytology alone | 667 | 11 | 1.6 (0.8, 2.9) | Initial no suspicious US | 597 | 3 | 0.5 (0.1, 1.5) | Initial suspicious US | 70 | 8 | 11.4 (5.1, 21.3) | Concordant lesion to benign cytology in postbiopsy correlation | 637 | 4 | 0.6 (0.2, 1.6) | Discordant lesion to benign cytology in postbiopsy correlation | 30 | 7 | 23.3 (9.9, 42.3) |
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Data in parentheses are 95% confidence intervals.
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