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CEUS AFs recognized by the Liver Imaging Reporting and Data System
| CEUS AFs favoring malignancy | CEUS AFs favoring benignity |
|---|---|
| Favoring malignancy in general, not HCC in particular | Size stability ≥2 yr |
| Definite growth | Size reduction |
| Favoring HCC in particular | - |
| Nodule-in-nodule appearance | - |
| Mosaic appearance | - |
CEUS, contrast-enhanced ultrasound; AF, ancillary feature; HCC, hepatocellular carcinoma.
