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Figure 3 : FDG PET /CT (top panel) is unremarkable in this patient of postoperative neuroendocrine tumor of the rectum, with increased HIAA levels. The 99mTc HYNIC TOC scan (bottom panel) shows the pancreatic lesion (arrow) and several other lesions showing avid concentration of the tracer (arrowheads) suggesting metastatic sites with SRS expression

Figure 3 : FDG PET /CT (top panel) is unremarkable in this patient of postoperative neuroendocrine tumor of the rectum, with increased HIAA levels. The 99mTc HYNIC TOC scan (bottom panel) shows the pancreatic lesion (arrow) and several other lesions showing avid concentration of the tracer (arrowheads) suggesting metastatic sites with SRS expression