General Discussion: Long history: 70-year-old female with known coronary artery disease and recurrent breast cancer here for evaluation of chest pain. The electrocardiogram during infusion of the pharmacologic agent today was indeterminate for ischemia.
Radiopharmaceutical: 2.5 mCi Tl-201 chloride i.v. and 22.0 mCi Tc-99m sestamibi i.v.
Discussion: Both thallium and Tc-99m sestamibi are also tumor agent. This case demonstrates ability od thallium and Tc-sestamibi to incidentally detect recurrent breast carcinoma if a focally Increased activity is seen extracadiac the cardiac, tumor should be concern.