Accumulation of FDG in central venous catheter mimicking lymph node metastasis
Citation, DOI, disclosures and case data
Keshavamurthy J, Accumulation of FDG in central venous catheter mimicking lymph node metastasis. Case study, Radiopaedia.org (Accessed on 21 Mar 2023) https://doi.org/10.53347/rID-63301
At the time the case was submitted for publication Jayanth Keshavamurthy had no recorded disclosures.View Jayanth Keshavamurthy's current disclosures
24 Sep 2018
11 times, by 3 contributors - see full revision history and disclosures
PET-CT was performed for surveillance of colon cancer
Age: 60 years
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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 there was poor intravenous access.
This should not be called a metastasis.
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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