[Results of a cytogenetic analysis of the peripheral blood lymphocytes of patients at different times after radiation therapy (up to 9 years)].

A study was made of the changes in the chromosome apparatus of peripheral blood leukocytes after radiotherapy of patients with uterine cervix cancer (a cumulative dose 70-90 Gy). Cells with the chromosome apparatus lesions and total amount of chromosome aberrations were intensively eliminated during the first 3-5 years following irradiation. Later (up to 7-9 years) their level stabilized to be 5-6 times higher than the control.