Large Calyceal Diverticulum Mimicking a Solid Renal Mass in a Patient Undergoing 68Ga-DOTATATE PET/CT.
case_report · Level V
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- Record sourced from PubMed, PMID 42708196.
- Also identified by DOI 10.1097/RLU.0000000000006684.
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Abstract
A 41-year-old man with grade 1, well-differentiated neuroendocrine tumor (NET) of the terminal ileum underwent initial staging with 68Ga-DOTATATE PET/CT. PET/CT images demonstrated focal uptake at the terminal ileum corresponding to the patient's known NET. In addition, a large, low-attenuation lesion with heterogeneously increased activity was seen in the interpolar region of the right kidney. Further evaluation with contrast-enhanced MRI demonstrated a finding consistent with a large calyceal diverticulum. PET/CT images were revisited, and the activity in the mass was compared with the activity in the bladder, which was similar.