[The late effects of radiotherapy for enlargement of the thymus in early infancy (author's transl)].

In a survey of 380 subjects irradiated over 20 years earlier for enlargement of the thymus, no increase in mortality for malignant tumours were noted. There was a high incidence (3.75%) of benign thyroid diseases, though this could not be attributed to irradiation with any degree of certainty. There were no significant karyotype differences between 36 subjects and 32 controls.