The Medical Effects of the Nagasaki Atomic Bombing
Medical aspect
The Effects of the Nagasaki Atomic Bombing on the Human Body
Acute phase
Rate of deaths due to the atomic bomb
Frequency of acute symptoms
Bone marrow
Early phase of late effects
Atomic bomb cataract
Chromosomal aberrations
Late atomic bomb effects
Thyroid cancer
Breast cancer
Stomach cancer
Excess relative risk of malignant tumors by site
Multiple primary cancers
Mental effects
Physical aspect
Physical damages
Map of damage
Physical effects
Blast wind
Heat rays
Atomic bomb survivor database
Estimation of radiation dose using the ESR signal from teeth
Radiation dose and death rate
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Thyroid cancer
A Papillary carcinoma B Normal thyroid tissue
C Nodular tumor
A:  A papillary structure with atypical cells and the proliferation of tumor cells is evident (papillary carcinoma).
B:  Normal thyroid tissue (colloid follicles show a regular arrangement).
C:  A nodular tumor is evident in the cervical region.
D: Excess relative risk of thyroid cancer(1958-1987)
Excess relative risk
The increase in excess relative risk at 1 Sv for all ages was 1.15.
The excess relative risk was higher in people who were young at the time of bombing than in those who were old at the time of bombing.
[Thompson DE, et al., Rediat Res 137:S17-S67, 1994]
E: Thyroid disease in the Nagasaki atomic bomb survivors
Thyroid disease
Solid nodules of the thyroid (thyroid cancer, adenoma, adenomatous goiter, nodules without histological diagnosis) were significantly more frequent among the atomic bomb survivors than among non-exposed persons, and it is known that the number of cases was higher the higher the dose and the lower the age at the time of bombing.
Antibody-positive spontaneous hypothyroidism was significantly more frequent among the atomic bomb survivors than among non-exposed persons. Moreover, the frequency reached a peak at a dose of 0.7Sv, which was lower than that in cancer cases.
[Cited and modified from Nagataki S, et al., JAMA 272:364-370, 1994]
Atomic Bomb Disease Institute