Sonographic evaluation of renal artery aneurysm in childhood.

We report a child presenting with renovascular hypertension and sonographic evidence of a renal artery aneurysm (RAA). The diagnosis of RAA was made sonographically by demonstrating vascular flow in an aneurysmal segment adjacent to but continuous with the right renal artery and externally compressing the inferior vena cava. Comparison of the sonographic studies and an abdominal angiogram illustrate the sensitivity of sonography in diagnosing this condition. We suggest that with renal doppler sonography, RAA may be diagnosed less invasively and possibly with greater frequency yet believe that the gold standard of angiography is necessary prior to surgical intervention.