Fig. 2

a Whole-body I-123 imaging shows significantly increased I-123 uptake within the left hemi-pelvis in a 61-year-old woman with a history of thyrotoxicosis treated with radioiodine treatment twice over the last 30 years, who ultimately had a thyroidectomy which showed Graves disease but who remained thyrotoxic post surgery. b The area of increased uptake within the left hemi pelvis corresponds on the low-dose CT to an 8-cm left-sided pelvic mass (M) in keeping with a confirmed struma ovarii