Pathologic Characteristics of 18F-FDG–Avid TI
| Parameter | Data |
| Malignant cases (n) | |
| Total | 47 (100%) |
| Malignant on FNA alone | 11 (23%) |
| Papillary | 24 (51%) |
| Follicular | 1 (2%) |
| Metastasis (from underlying malignancy) | 4 (9%) |
| Medullary | 2 (4%) |
| Hürthle cell cancer/oncocytic variant | 5 (11%) |
| Malignant histologic features | |
| Size (mm) | |
| Median | 15 |
| Range | 2–50 |
| Vascular invasion (n) | 3 (6%) |
| Capsule invasion (n) | 9 (18%) |