False-Positive Radioactive Iodine Uptake Caused by Cervical Myofascitis in a Patient With Differentiated Thyroid Carcinoma.

Tan, Xiang; Wang, Hao; Deng, Yujiao; He, Limeng; Zhang, Wei · Clin Nucl Med · 2023

case_report · Level V

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Abstract

A 31-year-old woman with a history of papillary thyroid cancer underwent ablative 131I therapy. Posttherapeutic whole-body 131I scintigraphy revealed abnormally increased activity in the neck. Additional SPECT/CT images localized the activity in the bilateral peripheral fascia of the platysma.

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