Radioactive iodine (RAI) accumulation is commonly used for the detection of metastatic disease posttotal thyroidectomy. However, false-positive results have been reported due to abnormal RAI accumulation in some benign pathologies apart from metastatic sites. Here, we present one such case where false-positive I-131 uptake in the pelvis which localized to the cervix and was attributed to menstruation.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10693371PMC
http://dx.doi.org/10.4103/ijnm.ijnm_34_23DOI Listing

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