Newborn with intestinal perforation (necrotizing enterocolitis), at ultrasound intestine with a thickened wall(attachment 1), pneumatosis (multiple hyperechoic microinclusions in the intestinal wall - air - attachment 2), at scanning in the lower right intercostal spaces(side-view at supine position) liver covered by reverberation artifact (free air in the abdominal cavity - attachment 3).
