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BOOKLET to Provide Basic Information Regarding Health Effects of Radiation (5th edition)
Chapter 10 Health Management 10.3 Thyroid Ultrasound Examination

Thyroid Ultrasound Examination: Results of the Preliminary Baseline Survey and the Full-scale Survey (Details of Fine-Needle Aspiration Cytology 1)

Thyroid Ultrasound Examination: Results of the Preliminary Baseline Survey and the Full-scale Survey (Details of Fine-Needle Aspiration Cytology 1)_Figure

These graphs show the age distributions of participants whose thyroid lesions were diagnosed as malignant or suspicious for malignancy by fine-needle aspiration cytology in the Preliminary Baseline Survey and the Full-scale Survey (second-round survey): they are shown by the age as of March 11, 2011 (top) and at the time of the Confirmatory Examination (bottom). The results of the Preliminary Baseline Survey and the Full-scale Survey (second-round survey) do not show the situation where thyroid cancer is found more frequently among young children (aged zero to 5), who are considered to have higher sensitivity to radiation, than among people in the other age groups.

  • Included in this reference material on March 31, 2014
  • Updated on March 31, 2021
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