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The Comparison Between the Ultrasonography Findings and the CT Findings to Evaluate the Invasion.
| CT | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Esophagus | Thyroid/cricoid cartilage | Thyroid gland | Prevertebral fascia | ||||||
| Positive | Negative | Positive | Negative | Positive | Negative | Positive | Negative | ||
| US | Positive | 7 | 0 | 12 | 0 | 4 | 0 | 0 | 0 |
| Negative | 0 | 10 | 1 | 4 | 0 | 13 | 1 | 16 | |
CT = computed tomography.
