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

Figure 4 ¹¹¹In-DTPA-pentetreotide scan in a 45-year-old woman with paraganglioma and glomus tumor, to evaluate for octreotide-avidity. On anterior (A) whole body planar images, there are 2 foci of uptake overlying the left skull base (arrowhead) and the mediastinum (arrows). On Axial SPECT, CT and SPECT/CT (B-D) the skull base radiotracer uptake localizes to a known glomus jugulare tumor adjacent to the left temporal bone and on thoracic axial SPECT, CT and SPECT/CT (E-G) the thoracic radioactivity is within a soft tissue mass in the middle mediastinum, located posterior to the ascending aorta. There is no abnormal radiotracer accumulation below the diaphragm. SPECT: Single photon emission computed tomography; CT: Computed tomography.