-10PRIVACY ACT MATERIAL REMOVED Further Development of Thyroid Nodules A detailed presentation of the thyroid lesions in the Marshallese is being published separately, (14) and only a brief review of the data is presented here. Table IV A below summarizes the thyroid lesions in the exposed itinieRendtinentn tedienoranherdl Rongelap people. In Table [¥ 86 the incidence of such lesions in the more heavily exposed group (55 living of 64) as a function of age is presented. table,) (The one case in the Ailingnae group is not included in the The first three cases ( . , and ) (Table IV) in teenage girls who were operated on in Guam in 1964 have been described (10,11), In the March 1965 survey, three additional cases of. thyroid nodules, two in exposed boys ( discovered, and — In addition, J, and one in an exposed woman ( _) were two boys ( and | thyroid with PBI's less than 2 pgm. ) were found to be hypo- | The three nodule cases were brought to Brookhaven National Laboratory in June 1965 for study (see Fig. 1), and surgery was later performed at the New England Baptist Hospital by Dr. Bentley P. Colcock. The two boys had partial thyroidectomies, and the nodules were diagnosed as benign adenomatoid goiters (as in the first three cases). The woman had a subtotal thyroidectomy, and she was found to have mixed papillary and follicular carcinoma with localized metastasis. the thyroid gland with radioiodine. She later. had complete ablation of Figs. 2 and 3 show the gross and histological appearance of these lesions. In September another thyroid survey was conducted at Rongelap and Ebeye by two of us ( and — y. This survey turned up five other cases with nodules greater than 1 mm. in size, and also five other 590142 3 3 PRIVACY ACT MATERIAL REMOVED i