ee td tienes eee Se ee re ae A “ate & Thyroid Lesions in Marshallese, December 1974 Group Ranuelap exposed (175 rads) Age at exposure <lo % Subjects* with malignant lessons 10-1150 80.5 (17/19) 15 5.3 (1/19) $35 SP 914/554 $44 (22/64) 3 9 ot (2/33) 4.7 (5/4) ay 10-35 275-450 Lin) AU du tateen espe 149 Dhar 17542 Guy? <0 Wad - lib Ml Kemuelape ute spat Nu. subjects with surgery 335-810 ld Ustnak exposed (UT rads) % Subjects’ with thyroid lesions 10-1 > Ai Aitingnas expensed (64 rads) Eat. thyruid dine,* rischs 16.0 (1/42) 34.5 (276) BO (0-1) 36S IZED) 33.3 (6/14) SSS) - 4 S, 1 ~ th) 0.0 (6/58) 0 t7 Gb (3/78) 3 LG (L612) n 4.121) a 34h (G157) CMW TTI) $B (121) ‘ 0.6 (1/157) \ 5M7, 120) 2 <10 0.0 (0/31 0 All 3.6 (5,147) 0 4.6 (9/194) > 4.7 (3/106) - i SB AM A, 3 v reer) . at if 0 U.0 (0/8) 10-18 Likiey: uisexpescd 1 3 0 : “ SP fom CO BED PE andl VOD plus gatnina; moan dose extrapolated fram caleulations*! for adults and 3-yeur-olde (we Section ED. "Hosed an nuiaber of peaple exposed, o> 7"idiag thisoe aero (number of cases total number in group), CVhe thvroid is Qunsidercd te be fully de. aped by about age Ub 4Oue additional case of adenoma, found a3 autopsy, ot included bere. Weighted mean dose. Pathologists dithered as to whether this lesion was malignant; it was scored as benign. © hhe more energetic, shorter-lived jsotopes of iodine comteibutedless to the total thyroid dose in the Curik people be case the fallout occurred hater there. De might be surtuised alsu that the biological effectiveness of the thyroid duse per rab would be less inthe Cirik geoup. curred ina d0-vear-old woorn (29 at the tune of exposure) sa the heavily exposed group, The niters val beuween exposure and diagnosis was 1 years.-2=4 Phe second and third cases in this group accurred 1D vears after expoiure, ina 36-year-old worn (age 21 at exposure) and ina 22-year-old Since the discovery of the tirst thyroid lesion 9 years aficr radiation exposure, chinicians particu. larly interested in the thyroid have participated in the annual examinsuons. Asa result, any slight irregularities discovered by palpation drewspecial atiention, This high degree of scrutiny and suspicion led ta the detection and removal of nodules ee ae : 1. Gross Appearance 4. The first case af carcinouna of the thyroid ov: ne have beniga lestous of the thyroid, nonas. AL three weer worn, Hospital sumuniiries of cas klinitied at BNL are presented in Appendix 10. a one atthe bitter who was thought to have cancer at the tine of surgery). OF these cases, J were found to dase carcinonia of the tlivroid and JE to a cvfoies wilh purathwroidcctony dacdvertently in was found, 1b vears after exposure, in a 36-year-old Ciirik woman who had received considerably less expasure.=" Three of 196 unexposed Rongelap prople have had surgery with removal of benign ade- . anmonis of thyroid tissue depending on the extent ofthe lesions (20 were subtidal and total thyroid: woman(age 6 at exposure). A fourth case of cancer . roid surgery has been carried out on 2b of the exposal Rongehip people with retnoval of varving 2a EEID He fo lle LT ORT hE een Re Peru artnetTI el