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BROOKHAVEN NATIONAL LABORATORY
MEMORANDUM
DATE:
To:
March 29, 1966
Dr. V. P. Bond
FROM:
R. A, Conard
SUBJECT: Results of Thyroid Survey During
1966 Medical Survey Marshall
Islands--Preliminary Report
Rongelap Examinations
%
Total incidence of thyroid nodules - 16 cases (includes 1] Ailingnae)
Obvious hypothyroidism
- 2 cases
18 cases thyroid pathology
Age Specific Incidence
.
(In 55 living of original 64 Rongelap heavily exposed group)
Age at Exposure
No. Exposed
Nodules,
No.
to
l- 5
6-10
11-15
16-20
>20
13
5
5
6
26
ee
sy
9
69.0
4
80.0
0
0
0
0
2
7.7
ss
i>
Hypothyroidism
No.
_%
2
-
15.0
-
Total Abnormalities
Now
% Of Group
11
3
0
0
2
_—_——
/&
84 .6
80.0
0
0
7.7
Individual Status Regarding Nodules;Effects of Therapy With Hormone
wai &
6
Cases with surgery--no recurrence noted. (1 case of malignancy of thy roid
not completely studied yet.)
1
Case with definite nodule--showed regression of nodule.
3.
3 other cases with
questionable changes in September showed no detectable abnomnalities in
March (2 on hormone, 1 not).
Cases--nodules did not regress or slightly increased (though presumably on
T~4 therapy).
2
Cases with questionable changes in September (not included in statistics at
3
New cases of nodular goitre.
1
Case with nodule in September not seen in March since she was away on a
distanc island (included in above table, however),
4
In-utero children--no nodules or growth impaimnent has been noted (not
that time) showed definite abnormalities in March,
Presumably on hormone,
However, all 3 on inadequate hormone therapy.
included in table).
5
Ailingnae children--no nodules; 1 adult with nodule,
.
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