DMSA scan
Pronunciation: D-M-S-A scan
Also written as: DMSA — Dimercaptosuccinic acid
Dimercaptosuccinic acid nuclear medicine study used to evaluate renal cortical function and detect scarring.
Full Definition
DMSA scan utilizes technetium-99m labeled dimercaptosuccinic acid to assess renal cortical function and identify areas of scarring or dysplasia. The radiopharmaceutical is preferentially taken up by functioning proximal tubular cells, providing detailed images of cortical integrity. This imaging modality is particularly valuable in pediatric urology for detecting reflux nephropathy, evaluating differential renal function, and monitoring disease progression. The scan requires minimal preparation and provides quantitative assessment of individual kidney function. Results guide treatment decisions in cases of vesicoureteral reflux and recurrent urinary tract infections.
Usage
Usage note: Report both absolute and relative function percentages when documenting results.
In Context
- "DMSA scan revealed 35% function in the left kidney with cortical scarring." — Nuclear medicine report
- "Follow-up DMSA scan showed stable renal function without progression of scarring." — Surveillance imaging report