[Behavior and biological action of 239Pu administered intramuscularly during complexon therapy].

With intramuscular injection of 239Pu nitrate the radionuclide content of the rat skeleton was higher, and at the site of injection, lower, than with injection of a polymer plutonium. The animals developed osteosarcomas (nitrate greater than polymer), and at the site of trauma, fibrosarcomas (nitrate less than polymer). After a complexon therapy the dose accretion in the skeleton and liver diminished, the life span increased, and the incidence of sarcomas decreased.