LOCATION OF A SMALL MEDIASTINAL PARATHYROID ADENOMA USING TC-99M MIBISPECT

After unsuccessful bilateral surgical neck exploration, a 60-year-old man with persistent primary hyperparathyroidism underwent Tc-99m MIBI SPECT scintigraphy to localize a parathyroid adenoma in preparation fo r repeat surgery, Early and delayed images showed abnormal mediastinal radionuclide accumulation, An additional MRI confirmed a small node a t the level of the aortic arch. Guided by the MRI and MIBI images, the surgeon was able to localize and to remove a small parathyroid adenom a.