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NORTH MARSHALL RADIATED
AMERICAN CONTROLS
CONTROLS
GHRONOLOGICAL AGE (YEARS)
Figure 4. Skeletal maturation.
Figure 5. Deviation from normal
boneage values, 4 to 9 years old.
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CHRONOLOGIC AGE (YEARS)
Figure 6. Skeletal maturation.
and hands showed slight improvementoverlast
year.
Residual changesin the skin from the previous
beta burns were present in 13 Rongelap people
andin one Ailingnae individual, mostly on the
back of the neck, the antecubital fossae, and the
dorsum ofthe feet. These changes were notsevere
and consisted grossly of alterations in pigmentation in areas showingslight atrophy and scarring
of the skin. In some cases pigment was increased
and in others pigmentation had not completely
returned. In other instances both pigmentation
and lack of it were present in the samelesion, giving a blotchy and uneven color. In only a few
+
Percent Incidence of Eye Disorders
—
&
1
0
Table 5
a
°
Eye disorder
Exposed
Unexposed
Rongelap Utirik Rongelap
Pinguecula
Pterygium
9.4
20.9
4.5
9.9
Cataracts
Vitreous floaters
Retinopathy, arteriosclerotic
Arcussenilis
15.7
7.1
2.1
12.5
11.7
0.1
0
7.8
Corneal pigmentation
3.1
0
4.8
77
0
5.8
2.9
1.0
0
cases (several lesions on the dorsum ofthe feet and
oneearlesion) was there sufficient scarring to result in adhesionsof the skin to subcutaneoustissues.
Biopsies were taken from four lesions and from
similar areas in unirradiated individuals for comparison. Microscopically no changes were noted
suggestive of neoplastic changes. Some lesions
showed thickening of the corium by bands of
collagen fibers, but this was no more extensive
than that observed in biopsies a year ago.
Laboratory Examinations
Hematological. As in previousreports, the blood
data have been classified according to age and