False-Positive 131 I Uptake After Posttraumatic Scab in a Patient With Papillary Thyroid Carcinoma.

Yang, Jun; Zhou, Pingping; Su, Xinhui · Clin Nucl Med · 2023

case_report · Level V

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Abstract

A 41-year-old woman with right papillary thyroid carcinoma underwent 131 I therapy (3.7 GBq). Posttherapy whole-body scintigraphy acquired 2 days later revealed a focus of intense activity in the anterior aspect of the left knee. The activity corresponding to the posttraumatic scab. Posttraumatic scab should be considerable a cause of false-positive whole-body scintigraphy findings.

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