Radioactive iodine (RAI) therapy is widely used as an adjunctive treatment in patients with differentiated thyroid cancer. Although 131I has high avidity in the functioning thyroid, and in differentiated thyroid cancer lesions, physiological and nonspecific uptake of 131I in healthy or benign tissue may contribute to false-positive findings on an 131I scan. Here, we present an interesting image of RAI uptake in the eye region post-RAI treatment, which has been identified as tear contamination in the artificial eye.
From the Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Suwon, South Korea.
Received for publication October 24, 2018; revision accepted December 25, 2018.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Young-Sil An, MD, PhD, Department of Nuclear Medicine and Molecular Imaging, School of Medicine, Ajou University, 206, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Suwon 16499, South Korea. E-mail: firstname.lastname@example.org.