Fig. 4. A: abnormal, tetraploid mitosis in polychromatic normoblast, 44 hours after accidental
exposure. B and C: Normoblasts: according to nuclear structure and cytoplasm polychromatic,
according to nuclear size early basophilic normoblast, 12 hours after accidental exposure.
D: “Release” of chromatin material, 44 hours after accidental exposure, washed and swollen
myelocyte nucleus. E: Chromatin dissociation with nuclear swelling, polychromatic normoblast. 12 hours after exposure. F: Karyolysis in normoblast, 12 hours after exposure.