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- Case Report Two Case of Erythroleukemia and Myelodysplastic Syndrome in a Non-Destructive Inspector
- Myoung Soon Oh, Jae Kook Yoon, Hyun Soo Kim, Hawk Kim, Jin Kyung Lee, Ji Ho Lee, Yang Ho Kim
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DOI: https://doi.org/10.35371/kjoem.2011.23.4.471
Published online: December 31, 2011
1Division of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea. chungang@dreamwiz.com 
2Division of Hematology-Oncology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
3Korea Cancer Center Hospital, National Radiation Emergency Medical Center, Seoul, Korea.
2Division of Hematology-Oncology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
3Korea Cancer Center Hospital, National Radiation Emergency Medical Center, Seoul, Korea.
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Abstract
BACKGROUND
Ionizing radiation is a group 1 carcinogen according to the IARC(International Agency for Research on Cancer) classification. With the development of the radiation related industry, the number of radiation exposed workers has been increasing. There have been several reports on AML(Acute Myeloid Leukemia) on exposure to ionizing radiation; however, there are no reports of occupational malignant lymphohematopoietic disease related to non-destructive inspection.
CASE
REPORT 1: A 35-years-old male, who had worked for 10 years in non-destructive inspection, was diagnosed with myelodysplastic syndrome. He worked 8 hours a day, for three weeks per months, where he was exposed to 192Ir and 60Co radiation sources. Because he had not worn a film badge for monitoring his radiation exposure dose, the accurate exposure dose was not reported. The estimate exposure dose calculated via a chromosomal study was 1.20 Gy, which exceed the dose limits of Korean radiation dose standards, which are 50 and 100 mSv annually and quinquennially respectively.
CASE
REPORT 2: A 26-years-old male, who had worked for 2.5 years in the same company was also diagnosed with myelodysplastic syndrome.
CONCLUSION
Non-destructive inspection is the main source of ionizing radiation in the workplace, which could be the cause of malignant lymphohematopoietic diseases. Therefore, more practical plans and guidelines are needed to prevent non-destructive inspectors from workplace radiation exposure.
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