Accumulation of FDG in central venous catheter mimicking lymph node metastasis (PET CT)
Presentation
PET CT was performed for routine surveillance of colon cancer.
Patient Data
Age: 60
Gender: Male
From the case:
Accumulation of FDG in central venous catheter mimicking lymph node metastasis (PET CT)
Nuclear medicine
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Axial PET
PET CT showing an FDG avid lesion in the right atrium at the tip of the port-a-cath with no anatomic abnormality seen on the corresponding CT images.
The patient received radiotracer into the port-a-cath as their was poor intravenous access.
This should not be called a metastasis.
Case Discussion
Differential for intense FDG activity in the port includes infection, inflammation, FDG stasis, FDG emboli, and thrombus which can be either FDG-avid or photopenic.
Caveat: avoid FDG injection via a port as much as possible.
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