Table 1 Summarised ceCT results in discordant cases with incremental PET/CT abnormalities that were likely true positive
Case | PET/CT finding | ceCT finding | Followup | Anticipated impact of ceCT on management |
|---|---|---|---|---|
1.1 (Fig. 1) | Bony FDG avid lesions | No metastases | False negative. (Repeat PET/CT scan 5 months later showed progressive bone metastases) | No change |
1.2 | Common iliac nodal FDG uptake | No metastases | False negative. (Repeat PET/CT 13 months later showed progression of nodal disease) | No change |
1.3 | Peritumoural nodal FDG uptake | No metastases | False negative. (N2 metastatic disease on histology at primary resection). | No change |
1.4 | FDG avid peritoneal nodule | No metastases | False negative. (Metastasis confirmed at surgery) | No change |
1.5 | FDG avid bone metastasis | No metastases | False negative. (Excisional biopsy positive for metastatic disease). | No change |
1.6 | FDG avid liver metastases | No metastases | False negative. (MRI 2 months later showed further liver metastases) | No change |