38
may have some degree of growth retardation,also
show evidence of hypofunctioning glands or glands
that are functioning at maximum capacity, based
on results of thyroid function studies (elevated
serum TSH levels or little or no response in '3"I
uptake following TSH stimulation). One of these
(No. 65) had a low serum thyroxine level. The
adults with thyroid nodules (Nos. 59 and 64) and
two of the children (Nos. 42 and 61) had normal
responses to TSH. Severalof the studieslisted in
Table 20 were performed after subtotal thyroid-
ectomy (Nos. 17, 21, 69, 2, and 20). The results
indicate inadequatefunction of the thyroid remnant, even in Nos. 17, 21, and 69, who had been
Figure 27. Thyroid uptake study
with ‘1, RongelapIsland.
operated upon in June 1964 and had no thyroxine
replacementbefore September 1965. The serum
iodoprotein levels (PBI less 7, I) ranged from 1.5
to 2.9 and did notdiffer significantly from values
in unexposed Marshallese.
Figure 28. Wrist x rays showing marked retardationofskeletal maturation in dwarfed boy with
hypothyrodism (right, subject No. 3, chronological age 10%2 yr) compared with younger brother
with normal osseous development (left, subject No. 83, chronological age 8%2 yr).
PRIVACY ACT MATERIAL REMOVED