We have been performing a systematic screening using a whole-body counter of internal radiation exposure in the affected areas by the Fukushima Daiichi nuclear incident. This case suggests 2 important points regarding the thyroid internal exposure screening immediately after a nuclear disaster. First, clinicians should recognize the possibility of overestimation of 131I exposure during the initial checkups of thyroid internal exposure if a detailed history of treatment by radioisotopes is not obtained. Second, in vivo measurements should be taken immediately after the disaster because all of the radioactive iodine generated after the disaster disappears within a few months.
From the *Division of Social Communication System for Advanced Clinical Research, the Institute of Medical Science, University of Tokyo, Tokyo; †Department of Radiation Protection, Soma Central Hospital, Soma, Fukushima; ‡Department of Global Health Policy, University of Tokyo, Tokyo; §Department of Orthopedic Surgery, Soma Central Hospital, Soma, Japan; and ¶Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Received for publication April 24, 2013; revision accepted November 19, 2013.
Conflicts of interest and sources of funding: none declared.
Reprints: Masaharu Tsubokura, MD, Division of Social Communication System for Advanced Clinical Research, the Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan. E-mail: email@example.com.