Table 2.
Whole-body FDG- PET/CT findings in the 50 CUP syndrome cases enrolled
| Biopsy proven Mets | N | Histology | TP | Primary site | FP | PET CT indicated primary site | NI |
|---|---|---|---|---|---|---|---|
| Cervical LN | 16 | Adenoca (5) | 8 | Nasopharynx (5) | 3 | Colon (2) | 5 |
| Sq ca (6) | Lung (1) | Oropharynx (1) | |||||
| Undiff (5) | Esophagus (1) | ||||||
| Pancreas (1) | |||||||
| Extra cervical LN | 19 | Adenoca (5) | 6 | Lung (3) | – | 13 | |
| Sq ca (7) | Breast (1) | ||||||
| Undiff (7) | Uterus (1) | ||||||
| Anal Canal (1) | |||||||
| Cerebral | 2 | Adenoca (1) | 1 | Lung (1) | – | 1 | |
| Undiff (1) | |||||||
| Hepatic | 3 | Adenoca (3) | 2 | Stomach (1) | – | 1 | |
| Colon (1) | |||||||
| Peritoneal | 8 | Adenoca (6) | 3 | Colon (2) | – | 5 | |
| Undiff (2) | Stomach (1) | ||||||
| Skeletal | 2 | Adenoca (2) | 1 | Lung (1) | 1 | Lung (1) | – |
| Total | 50 | 21 | 4 | 25 |
TP True Positive, FP False Positive, NI Not identified