Hepatobiliary Excretion of 99m Tc-MAG3 on Renal Scintigraphy : A Diagnostic Pitfall in the Evaluation of Urine Leak.
case_report · Level V
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- Record sourced from PubMed, PMID 41524526.
- Also identified by DOI 10.1097/RLU.0000000000006301.
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Abstract
A 66-year-old man with end-stage kidney disease status post kidney transplantation underwent 99m Tc-MAG3 renal scintigraphy for evaluation of suspected urine leak. Initial dynamic images demonstrated severely impaired renal function of the graft without evidence of leak. On delayed planar images, radiotracer activity adjacent to the transplanted kidney was seen, which was then identified in the ostomy bag on SPECT/CT, representing hepatic excretion of 99m Tc-MAG3 in the setting of severe renal dysfunction. The findings on planar images may mimic a urinary leak. SPECT/CT is valuable in such cases, as it enables accurate anatomic localization and prevents misinterpretation.
Medical subject headings
- Technetium Tc 99m Mertiatide
- Kidney
- Liver
- Single Photon Emission Computed Tomography Computed Tomography
- Biliary Tract