Table 2.
Individual PET results and immunohistochemical FAP expression of lymph node metastases
| Pat# | LN [Mets/resected] | Location [Side / Level] | Size [mm] | [18F]FDG PET | FAP-directed PET | IHC | ||
|---|---|---|---|---|---|---|---|---|
| SUVmax | SUVpeak | SUVmax | SUVpeak | FAP CAF | ||||
| 1 | 4 / 59 | R / Ib | 11 | 10 | 3 | 8 | 5 | 2 + |
| R / Ia | 5 | 3 | 2 | 3 | 2 | 2 + | ||
| L / Ia | 2 | 3 | 2 | n/d | n/d | 3 + | ||
| L / Ib | 6 | 7 | 4 | 5 | 3 | 3 + | ||
| 2 | 3 / 50 | R / Ib | 11 | 8 | 5 | 8 | 5 | 2 + |
| R / Ib | 9 | 5 | 3 | 6 | 4 | 2 + | ||
| R / IIa | 12 | 7 | 5 | 8 | 6 | 3 + | ||
| 3 | 0 / 36 | |||||||
| 4 | 1 / 53 | R / IIa | 5 | n/d | n/d | n/d | n/d | 2 + |
| 5 | 1 / 47 | R / IIa | 43 | 21 | 13 | 13 | 8 | 2 + |
| 6 | 0 / 23 | |||||||
| 7 | 1 / 49 | R / Ib | 9 | 5 | 5 | 6 | 4 | 3 + |
| 8 | 4 / 46 | R / Ib | 22 | 34 | 17 | 20 | 11 | 3 + |
| R / Ib | 5 | n/d | n/d | n/d | n/d | 2 + | ||
| R / IIa | 8 | 16 | 8 | 8 | 6 | 1 + | ||
| R / IIb | 8 | 20 | 12 | 8 | 6 | 2 + | ||
| 9 | 0 / 14 | |||||||
| 10 | 2 / 57 | R / Ib | 12 | 41 | 25 | 20 | 14 | 3 + |
| R / IIa | 15 | 29 | 12 | 25 | 9 | 2 + | ||
CAF, cancer-associated fibroblasts; FAP, fibroblast activation protein; IHC, immunohistochemistry; L, left; n/d, not detected; R, right; LN, lymph node; Mets, metastases; SUV, standardized uptake value