Fig. 1
From: A dual-tracer approach using [11C]CH and [18F]FDG in HCC clinical decision making
This 75-year-old female patient (#8) with HCC in segment VI and VII, both successfully treated with MWA in 2018 and 2020. Post-treatment MRI follow-up at three months revealed two new lesions in segment V and VIII and several abdominal wall lesions suspected of needle tract metastasis. Dual-tracer PET/CT showed increased uptake of [11C]CH (A) for a needle tract site metastasis near the 10th rib (arrow), not seen by [18F]FDG (B). In addition, maximum intensity projection (MIP) of [11C]CH (C) revealed several intrahepatic metastases and a lesion at fifth costovertebral junction, all not seen on [18F]FDG (D). The costovertebral lesion resulted rapidly into spinal cord injury to which patient received emergency radiotherapy. Patient received palliative pain care and died shortly after