Sup(123)I excretion in breast milk - additional data

A woman with a suspected sublingual thyroid was referred for thyroid imaging with 123I-sodium iodide. On attending it was ascertained that she was currently breastfeeding her 3-month-old baby. Reference to the available literature showed little information regarding the excretion of 123I-sodium iodide in human breast milk apart from one single case. It was felt therefore that this would be an ideal opportunity to collect some useful data. Originally the presence of impurities in the radiopharmaceutical administered had been discounted as being of little significance. However, after consideration, a review of the contribution of any impurity was undertaken. (author)