CTICasesRetained Acupuncture Needles in the Back and Extremities
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Imaging findings
CT scans revealed numerous tiny, flexible metallic wires distributed primarily along the lower neck, back, and in a paraspinal pattern. Additional radiographs of the foot and ankle showed similar small metallic threads, referred to as "gold thread" needles. The patient, of Eastern Asian ethnicity, had a chronic pain syndrome.
Key takeaways
These findings are classic for retained acupuncture needles. The needles, being very thin and flexible, can break off during treatment, especially with twisting manipulations, and remain in the tissues. This is a common incidental finding, particularly in patients who receive traditional acupuncture, and is a useful 'fun' case for medical students to identify. The sheer number of retained needles in this patient was particularly striking.
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See all cases from January 29, 2016 →