Table 4 (cont'd) Patient No. & sex Age at surgery Years post exposure Pathologic diagnosis Remarks Utirik unexposed controls *2279 M 3074 F 3058 F 21,23 Papillary carcinoma Lymph node metastases Papillary carcinoma Lymph node metastases 22 56 Adenoma Adenomatous nodule 78 Adenomatous nodules with follicular 3096 F 56 Atypical adenomatous Focal hypercellularity 3023 F 39 Adenomatous nodule Marked papillary 3042 F 3006 M 50 adenoma nodules , Focal atypia hyperplasia Wotje unexposed controls 5027 M 32 5059 F 49 5030 M 36 Papillary carcinoma Adenomatous nodule Atypical adenomatous nodule with adenoma *In the younger (non-age-matched) group. - 66 - Focal hyperplasia Focal hyperplasia, borderline atypia