Ultrasonographic findings of multiple intussusception in an extremely preterm infant

A 613 g girl was born at 23 weeks of gestation by vaginal delivery due to maternal chorioamnionitis. She developed constipation and abdominal distention on day 2, a small amount of peritoneal fluid and low blood pressure on day 4 and bloody stool on day 6. Abdominal X-ray showed a non-specific bowel gas pattern. Necrotising enterocolitis (NEC) was suspected and treated by fasting, vasopressor support...