Characteristics and Methods of Diagnosis for Nonmetastatic Uptake
| Nonmetastatic uptake | Number of lesions | Surgery | Biopsy | Clinical follow-up |
|---|---|---|---|---|
| Lymph node (anthracosis) | 20 | 20 | ||
| Lymph node (follicular hyperplasia) | 9 | 9 | ||
| Lymph node (anthracosis and follicular hyperplasia) | 3 | 3 | ||
| Lymph node (granulomatous inflammation) | 12 | 12 | ||
| Pneumonia | 8 | 5 | 3 | |
| Arthritis | 4 | 4 | ||
| Urinary tract, hydronephrosis | 4 | 4 | ||
| Malignancy of another organ (thyroid, larynx) | 6 | 3 | 3 | |
| Parotid tumor (Warthin tumor) | 3 | 3 | ||
| Incidental colonic 18F-FDG uptake | 7 | 7 | ||
| Inflammatory disease of abdomen (e.g., gastric ulcer, diverticulitis, or cholecystitis) | 12 | 1 | 11 | |
| Inflammatory disease of head and neck (e.g., sinusitis, parotiditis, or chronic thyroiditis) | 21 | 4 | 17 | |
| Extravasation of 18F-FDG | 1 | 1 | ||
| Total | 110 | 56 | 18 | 36 |