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Sonographic features of 57 tumor recurrence cases confirmed by pathology.
| Sonographic features | Single tumor | Maximum tumor diameter (cm) | Regular margin | Clear border | Cystic changes | Calcifications | Bone destruction |
|---|---|---|---|---|---|---|---|
| Numbers (%) |
33 (57.9%) |
5.5 ± 3.1 | 14 (24.6%) |
39 (68.4%) |
11 (19.3%) |
26 (45.6%) |
8 (14.0%) |
