Accelerated renovascular hypertension following angioplasty. Assessment of therapy by Tc-99m DMSA imaging.

This is a report of serial Tc-99m DMSA renal imaging on a pediatric patient with renovascular hypertension that experienced a complication of angioplasty. The case dramatically illustrates the usefulness of this radiopharmaceutical in the evaluation of acutely worsening hypertension, and in monitoring improvement following arterial revascularization for significant branch stenosis.