Table 2.
Demographics, visual category numbers, mean volume, and mean SUVmean and SUVmax of thyroid glands on PET/CT for each patient group
| Demographics | NF1 (n = 69) | Sarcoidosis (n = 25) | T1 lung cancer (n = 15) |
| Males | 34 (49) | 15 (60) | 9 (60) |
| Age (range), years | 37±17 (7–80) | 45±11 (22–64) | 58±4 (48–63) |
| Thyroid gland | |||
| Not visible | 58 (84) | 23 (92) | 13 (87) |
| Diffuse | 2 (3) | 1 (4) | 1 (7) |
| Diffuse | 2 (3 | 1 (4) | - |
| Focal | 7 (10) | 1 (7) | |
| Volume, cm3 | 14.7±5.3a | 12.0±5.6a | 14.9±5.7 |
| Goiter | 8 (12) | 2 (8) | 2 (13) |
| SUVmean | 1.2±0.5 | 1.1±0.4 | 1.3±0.4 |
| SUVmax (range) | 2.7±3.5a (0.8–28.6) | 1.7±0.8a (0.9–4.8) | 2.1±0.6 (1.2–3.3) |
Values are presented as means ± SD or numbers (%) unless otherwise stated. PET/CT, positron emission tomography/computed tomography; SUVmean, mean standardized uptake value; SUVmax, maximum standardized uptake value.
a
Statistically significant difference.