Division NEO-NEC: Necrotising enterocolitis

Histopathological evidence of necrotising enterocolitis

OR

at least one characteristic radiographic abnormality (pneumoperitoneum, pneumatosis intestinalis, unchanging ‘rigid’ loops of small bowel) plus at least two of the following without other explanation: vomiting, abdominal distention, prefeeding residuals, persistent microscopic or gross blood in stools