The relationship of these observations to those on the thyroid is bq@ing considered. At least one breast tumor has been removed from each of over 100 andmals. observations suggest that radiation was associated with an increase@ Preliminary occurrence of breast tumors. The data from this series of observations are not complete. Neoplasms of the Thyroid Following X-radiation in Clinical Subjects With the increase in publicity concerning the develonment of thyroid in adults who had received x-radiation to the tonsils or when they were infants or. children and to the skin of head and neck for acnq there have been a large mmber of persons examined by us from a wide | This has provided an 2 the findings and make plans for special study of the lesion when that our laboratory, supported in part by this contract, has had and personnel particularly interested and experienceg ties make it possible to take advantage of these opportumities. 31 of lesions of special interest was anticipated, a tracer of 1st, and with autoradiographic techniques immediately available, the n was .begun area. If such we have had the opportunity to explore the thyroid. everydayuse as adolescents, ty to anticipate . The fact e technique in in these activien the probability given in advance, essary work on tiss as soon as the tissue was removed. Although m clinical practice the interest and concern in draws primary consideration, the multiple minute lesions and the Sular or blood vessel invasion. A very important clinical consi | malignant lesions