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

Figure 5 A 55-year-old woman with Cushing syndrome underwent ¹³¹I-NP-59 single photon emission computed tomography/computed tomography scan for localization of Cushing’s adenoma. Planar posterior (A) abdominal image on day 5 post injection of ¹³¹I-NP-59 SPECT/CT demonstrates focal uptake in the left adrenal region (arrow). Transverse SPECT (B), CT images (C) and fused SPECT/CT (D) localize activity to a 1.5 cm × 1.8 cm nodule arising from the left adrenal gland (arrows). Findings are compatible with a hyperfunctional left adrenal adenoma. Imaging courtesy of “Adrenal Cortical Imaging with I-131 NP-59 SPECT-CT”. (By Wong et al[181], with permission). SPECT: Single photon emission computed tomography; CT: Computed tomography.