A 33-year-old woman was referred for radioiodine 6 months after total thyroidectomy and neck dissection for papillary thyroid cancer. Posttherapy whole-body 131 I scintigraphy showed not only the known activity in the neck but also accumulated activity in both feet. SPECT/CT revealed focal uptake in bilateral great toenails. On further clinical evaluation and follow-up, the patient was diagnosed as paronychia of the great toenails.
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Yang et al. (2024) studied this question.
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