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. 2017 Oct 3;10:4821–4828. doi: 10.2147/OTT.S140671

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© 2017 Yordanova et al. This work is published and licensed by Dove Medical Press Limited

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(A) Initial ¹³¹I-planar images of a 74-year-old female with metastatic thyroid cancer (lung, bone, and intracranial soft-tissue metastases, marked with arrows). The tumor marker thyroglobulin (Tg) before radioiodine therapy (RAI) was 572 ng/mL. (B) After two administrations of RAI (cumulative activity: 14.3 GBq), the patient was in complete remission with the Tg at 0.2 ng/mL. The planar images show only a physiological uptake of the radiotracer in the gastrointestinal tract and pharyngeal mucosa (marked with an asterisk).