The Wandering Mesenteric Lymph Node: Delayed 68Ga-DOTANOC PET/CT Imaging to Overcome a Potential Pitfall

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A patient multiple endocrine neoplasia type 1 presenting with radiological suspicion of pancreatic neuroendocrine tumor relapse after surgical and somatostatin analog treatment underwent restaging 68Ga-DOTANOC PET/CT. Standard and delayed images detected an area of focal intense uptake moving from the left para-aortic to the paracaval region. The lesion was identified at previous imaging in different abdominal locations (eg, adjacent to the duodenal wall at presurgical PET and in the aortocaval region at restaging contrast-enhanced CT). Dual time-point 68Ga-DOTANOC PET/CT was crucial to accurately diagnose the wandering mesenteric lymph node, a potential interpretation pitfall especially when found far from the initial position.

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