Comparison of Number of Cases at Study Entry Demonstrating Metabolic Activity by 18F-FDG and 11C-MET by Anatomic Regions
| Group | 18F-FDG–positive cases | 11C-MET–positive cases |
| Neck (includes periclavicular, periauricular, submental) | ||
| Right | 10 | 10 |
| Left | 15 | 15 |
| Waldeyer’s ring (includes nasopharyngeal, tonsillar, tongue base) | 2 | 1 |
| Axilla (includes pectoral nodes) | ||
| Right | 6 | 6 |
| Left | 7 | 7 |
| Mediastinum (includes epicardial, internal mammary, diaphragmatic) | 14 | 14 |
| Lung | 1 | 1 |
| Hilum | ||
| Right | 6 | 6 |
| Left | 7 | 7 |
| Paraaortic (includes porta hepatic, retroperitoneal, celiac) | 7 | 2 |
| Liver | 2 | 0 |
| Spleen | 1 | 1 |
| Mesenteric | 0 | 0 |
| Iliac | ||
| Right | 4 | 4 |
| Left | 3 | 3 |
| Inguinal/femoral | ||
| Right | 4 | 4 |
| Left | 4 | 4 |