Morphologic and Metabolic Lesion Characteristics in Cases with TP and FN FNA Results
| Characteristic | TP | FN | P |
| No. of patients | 179 | 34 | |
| Size of lesion (mm) | NS | ||
| Average | 35.2 | 29.8 | |
| Minimum | 6.5 | 9 | |
| Maximum | 100 | 148 | |
| PET uptake pattern (%) | NS | ||
| Homogeneous | 70 (39%) | 16 (47%) | |
| Inhomogeneous | 102 (57%) | 14 (41%) | NS |
| Absent | 7 (4%) | 4 (12%) | NS |
| SUVmax at needle tip | <0.05 | ||
| Average | 6.4 | 4 | |
| Minimum | 0.3 | 0.22 | |
| Maximum | 44.7 | 22.1 | |
| Lesion SUVmax | <0.05 | ||
| Average | 12.4 | 9.3 | |
| Minimum | 0.84 | 0.3 | |
| Maximum | 63.7 | 29.8 | |
| Distance from needle tip to highest tumor SUVmax (mm) | <0.001 | ||
| Average | 5.9 | 15.4 | |
| Minimum | 0 | 0 | |
| Maximum | 86 | 50.3 | |
| Adenocarcinoma | 102 (56%) | 13 (38%) | |
| Squamous cell carcinoma | 24 (13%) | 5 (15%) | |
| Small cell lung cancer | 3 (2%) | 1 (3%) | |
| Non–small cell lung cancer* | 28 (15%) | 1 (3%) | |
| Neuroendocrine tumor | 4 (2%) | 7 (20.5%) | |
| Other malignancies† | 21 (12%) | 7 (20.5%) |