PMC4896118_01
35-year-old man with hypertension and hypercalcemia. Tc-99m sestamibi scan shows no uptake in the neck.
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PMC4896118_01_gr1.jpg
fig1a
Tc-99m sestamibi administered intravenously, followed by planar imaging on a dual head gamma camera (Millenium MG, General Electric, Milwaukee, WI) of the neck and chest after a delay of 20 minutes and repeated after 2 hours. This scan demonstrated no evidence of abnormal uptake in the neck (Fig. 1A) and demonstrated increased uptake in the upper mediastinum (Fig. 1B).
35-year-old man with hypertension and hypercalcemia. Tc-99m sestamibi scan shows increased uptake in the upper mediastinum (arrow).
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fig1b
A chest CT without intravenous contrast was acquired on a multidetector General Electric CT scanner, which demonstrated a 7mm density in the superior mediastinum adjacent to the aortic arch slightly anterior and to the right of the trachea which was thought to represent the aberrant parathyroid adenoma (Fig. 2A).