CTICasesPort-a-Cath Access Needle Misplacement
Imaging findings
Chest radiograph and CT show a port access needle (Huber needle) whose tip projects outside the margins of the subcutaneous port reservoir, indicating failure to cannulate the septum.
Key takeaways
Proper access of a subcutaneous port requires placing the Huber needle directly into the center of the self-sealing septum. Misalignment or incomplete penetration can lead to extravasation of cytotoxic chemotherapeutic agents into the subcutaneous tissues, which can cause severe local necrosis.
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