the use of radionuclides is of unquestionable value for scanning the thyroid gland and thus permitting the localization of normal vs. ectopic thyroid tissue , and the recognition of active ( `` '' warm '' '' or `` '' hot '' '' ) vs. inactive ( `` '' cold '' '' ) areas , especially in nodular goiter .
C0040132
thyroid gland
C0018023
in nodular