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:
A ne cml, in,
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ne and
intestine together with the lesser exposures to the small intesti
radiastomach according to Graph Five may be in the range where onset of
tion sickness might occur.
Such doses to the lower large intestine might
be approaching those that might produce intestinal tumors in e small
percent of those so exposed.
2. Thyroid
The treatment of disorders of the thyroid with radioiodine has
led to considerable information on doses and their effects to this
20,21,22,23, 24
organ.
(Only a partial list of references are noted)
Whereas these
treatments have been principally with abnormal thyroids, much of the
information may be extrapolated to normal thyroids for the purposes
of this discussion.
In addition there are other data based on
euthyroid (normal) thyroids in patients suffering such allments as
congestive heart failure .~?
The picture that is clearly presented is that of the relative.
insensitiveness of the adult thyroid to radiation.
For example,
Freedberg, Kurland, and Herman’’report "e--Seven days after administration of 17 and 20 millicuries of I 132
which delivered 14,500 and
31,000 rep, respectively, to the thyroid gland, no histologic changes
were noted which could be attributed to ee Fourteen and twentyfour days, respectively, after administration of 59 and 26 millicuries
of qi3t marked central destruction of the thyroid gland was noted.---”
Since the first two patients expired seven days after administration
of the st from pulmonary edema, it does not eliminate the possibility
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