Use of Doppler ultrasound and 3-dimensional contrast-enhanced MR angiography in the diagnosis and follow-up of past-traumatic high-flow priapism in achild

We report a 7-year-old boy with post-traumatic arterial priapism. Doppler U S could not reliably identify or exclude a fistula. MR angiography did not demonstrate an arteriovenous fistula and the child was treated conservative ly. The ideal imaging modality should demonstrate the presence or absence o f a clinically significant causative lesion which, in high-flow arterial pr iapism, may need intervention. Three-dimensional, contrast-enhanced MR angi ography appears to fulfil these:requirements. On the basis of the non-invas ive Imaging findings, invasive intervention was avoided in this case with a successful outcome.