a 50-yr-old man with a large goiter had elevated serum levels of t4 ( 22 micrograms/dl ) , t3 ( 228 ng/dl ) , and free t4 ( 6.6 ng/dl ) , a high 24-h 131i-thyroidal uptake ( 69 % ) , and an elevated tsh level ( 3.6 microu/ml ) , as well as hyperresponsiveness of tsh to trh ( peak tsh , 47 microu/ml ) .
C0018021
goiter
C0040132
thyroidal