CTICasesPartially extravasated triple-lumen central venous catheter
Imaging findings
Chest radiographs and CT show a left internal jugular triple-lumen catheter. A non-contrast CT shows extravascular contrast medium collection in the anterior mediastinum. A venous angiogram confirms that only the proximal port is intravascular, while the distal port extravasates contrast into the mediastinum due to catheter tip wall penetration.
Key takeaways
Multi-lumen catheters can be partially extravasated, with one port positioned intravascularly and another positioned extravascularly. Checking blood return or flushing from only one port may fail to detect partial extravasation, highlighting the importance of verifying all ports.
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