Copyright © 2017 American Academy of Pediatrics. From: CRITICAL SITUATIONS American Academy of Pediatrics Textbook of Pediatric Care, 2nd Edition, 2017 Figure Legend: A coronal head ultrasound of a baby born at 30 weeks’ gestation with a history of an intraventricular hemorrhage with increasing head circumference. Prominent dilated lateral ventricles (white arrows) and a clot-filled third ventricle (black arrow) are demonstrated. Date of download: 12/25/2017 Copyright © 2017 American Academy of Pediatrics. All rights reserved.