Pediatric Radiology > Genitorinary > Tumors > Neonatal Adrenal Hemorrhage

Neonatal Adrenal Hemorrhage

Adrenal hemorrhage can occur secondary to birth trauma or stress. It is more common on the right (70%) but can be bilateral (10%). As it is usually asymptomatic, its importance lies in differentiating it from neuroblastoma. Adrenal hemorrhage usually is anechoic and avascular whereas neuroblastoma is an echogenic mass with evidence of vascularity. Serial ultrasound exams may be helpful to show the resolution of the hemorrhage. MRI may also be useful in problematic cases to show the hemorrhage.