Endocrine radionuclide scintigraphy with fusion single photon emission computed tomography/computed tomography

Figure 1 Right inferior parathyroid adenoma in a 60-year-old man. ^99mTc-sestamibi parathyroid scan anterior early 20 min (A) and delayed 2 h planar images (B) show focal radiotracer uptake and retention at the juncton of the right lower neck/superior mediastinum (arrows). Axial SPECT, CT and SPECT/CT (C-E) imaging localizes this activity to a soft tissue abnormality in the right lower neck posterior to the sternoclavicular joint (arrows), consistent with ectopic inferior parathyroid adenoma in the lower neck. This was surgically removed via a lower neck incision approach. SPECT: Single photon emission computed tomography; CT: Computed tomography.