Association between contrast extravasation on computed tomography scans and pseudoaneurysm formation in pediatric blunt splenic and hepatic injury: A multi-institutional observational study

Multi-institutional study of 236 pediatric blunt liver/spleen injuries found contrast extravasation on initial CT independently predicts pseudoaneurysm formation (OR 4.96), regardless of injury grade. Findings support selective follow-up imaging in children with contrast extravasation to enable early pseudoaneurysm detection during nonoperative management.