NCIt definition : A radiopharmaceutical consisting of ethylenedicysteine-deoxyglucose (EC-DG) labeled
with the metastable radioisotope technetium Tc-99 (99mTc). Upon administration, technetium
Tc 99m ethylenedicysteine-deoxyglucose accumulates in cells with increased metabolic
activity such as proliferating tumor cells; tumor tissue may then be imaged using
gamma scintigraphy.;