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18 Thyroid Cancer Cases Confirmed in Fukushima Children: Preliminary Results of FY2011-2013 Thyroid Ultrasound Examination

For complete translation of the the thyroid examination results published this time, please refer to this post.


Total number of children examined as of June 7, 2013: 216,809

Total number of children whose initial examination results are confirmed: 192,886
Assessment A1 106,823 (no nodules or cysts found)
Assessment A2 84,783 (nodules 5.0 mm or smaller or cysts 20.0 mm or smaller)
Assessment B 1,279 (requiring secondary examination)

Secondary examination results as of July 31, 2013
(including blood and urine tests, more detailed ultrasound examination, and fine-needle aspiration biopsy if needed)
18 papillary thyroid cancers confirmed after surgery (18 boys, 26 girls, age 8-21)
25 suspected of thyroid cancer, awaiting surgery
1 benign nodule

  The youngest confirmed of cancer is a girl who was 6 years old at the time of the nuclear accident.

1,280 are eligible for secondary examination
771 have actually undergone secondary examination
625 finished the secondary examination





① Results of cytological examination



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Fukushima Thyroid Examination Fact Sheet: September 2017 (Long Version)

Fukushima Thyroid Examination Fact Sheet:  September 2017
✴Copying or re-posting part or whole of this post is not permitted. Please link to this post instead.

Note: Corrections were made in the following paragraphs in pink color on October 17, 2017.
Second paragraph in section "Screening protocol"
First paragraph in section "Thyroid cancer cases"
First paragraph in section "Transparency and integrity of data"
Second paragraph in subsection "1. A limited time interval after the accident" in section "Official stance on radiation effects"
Fourth paragraph in subsection "2. Very low doses" in section "Official stance on radiation effects"

Note: A shorter version of this fact sheet has been e-published on the website of Kagaku by the Iwanami Publishers. It can be downloaded from this link. Citation in AMA style is as follows: Hiranuma Y. Fukushima thyroid examination fact sheet: September 2017. Kagaku. 2017;87(9):e0001-e0011.


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