tological section of these area revealed patchy
loss of pigment cells at the base of the epidermis
andslightly edematous upper dermis and papillae.
The blood vessels showed slight vacuolation of
the
media
of
the
muscular arteries,
but
no
evidence of inflammation or neoplasm was found
punctata was noted in T-6 who was examined
in Tokushima University Hospital.
As to the neuroretinal findings, slight opacities
and pigmentation of macula were found in 3
cases, and slight arterio-sclerosis were observed
in 4 cases.
as well as chronic dermatitis (Drs. M. Seki and T.
In general, it is still early to decide whether
Yoneyama) (Plates 2 and 3). These findings
are similar to those observed in the Marshallese”.
these abnormalities in the exposed persons were
late effects of the exposure in 1954 or not. Precise
In two cases who showed complete epilation,
observations should be continued.
small alopecias were still observed CT-2 and 7).
Thin hairs grew in the area. In T-7, vrev hairs
seemed to be much comparing with age.
Besides those area, residual beta burns were
observed in smal] area of wrists (T-6 and K-7),
leg
Haematological Examinations
The results of haematological examinations
are presented in Table 4.
a. Peripheral blood
Leucocytes: Leucocyte numbers were distributed between 4,200 and 9,400.
D. Ophthalmological Examinations
Ophthalmological examinations were carried
out on 14 hospitalized persons and 3 outpatients
Neutraphils: Numbers of neutrophils were
in normal range in all the cases except Case
T-3. Obvious shift to the left of nuclei was
not found.
by Dr. & Kubota, National Hospital of Chiba,
Lymphocytes: Numbers of lymphocytes were
and Dr. N. Hirota, Yaizu City Hospital, respectively. The results are presented in Table 53.
over 2,000 in all the cases except Case T-6
which showed lymphocyte level below 2,000
in every examination.
Losinophils: Case K-2 showed eosinophilia
which had continued since acute stage. No
sign of parasite was proved.
Basophils: As to basophils, the rate to 3,000
leucocytes was calculated (Table 5). Comparing with that of normal persons, slightly
high percentage of basophils was observed in
Case K-2 and Case K-9. The latter showed
similar rate in 1961 survey.
Monocytes: No pathological data was obtained on these cells.
T-3, K-5 and K~4 were chosen as representing cases at the acute stage with signs and
symptoms of marked degree, of moderate
degree, and of minimal degree, respectively.
Table 3.
Ophthalmological Examinations
Pterygium and pinguecula.-..-- 9 (T-3, T-8, K-2,
K-4,
K-5, K-8, K-11, K-13,
K-16)
Corneal pigment: --:ssere-ceeseeeees 3 (K-2, K-4, K-10)
Vasculalisation -:--+eesseeeseeeeee 2 (K-4+, K-13)
Keratitis diffusa--+---.---ceeeesseee 2 (T-3, K-5)
Arcus Senilis ccccccsssesecccesenreuss I (K-1])
Lenticularapacities
s--cererreers 7 (T-2,
T-3,
T-6,
T-7,
K-5, K-11, K-16)
VIULTEUS OPAcities ce-ereereereereees 1 (K-8)
Macular
Retinal
degeneration.-------+++- 3 (T-3, K-2, K-55
arteriosclerosis «+--+... 5 (T-2,
K-4, K-5. K-6,
K-99)
Strabismus ccsececesseesercccesscseene 2 (K-4, K-10)
Pterygium and pinguecula were observed in
9 persons. Corneal pigmentation was proved in
3 cases.
Lenticular opacities were noted in 7 cases; 7. e.
Cases T-2 and T-7 showed slight opacity of
posterior capsule, cases T~3, K-5 and K-11 had
opacities of subcortices.
Case K-16 showed
slight opacities of posterior cortex. Cataracta
The changes of WBC, neutrophils and lymphocytes are illustrated in Fig. 6-A, B and C.
T-3 showed slightly decreased values. Considering the myelogram of T-3, a slight maturation arrest of myeloid cells might exist.
Platelets:
Platelets counts (130~510 x 10°)
were normal.
Erythropotetic elements: Between the exposed
ee enee
external ears CT-2,7,8 and K-6), foot and
(K-8).
E.