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Difference between NEC and SIP in preterm infants
| NEC | SIP | |
|---|---|---|
| Age | >2 weeks | First 2 weeks |
| Bloody stools | Uncommon | No |
| Ileus | Yes | Variable |
| Pneumoperitoneum | In advanced NEC | Always |
| Pneumatosis Intestinalis | Yes | No |
| Inflammatory response | Yes | Variable/No |
| Prognosis | Variable-Worse if surgical NEC | Relatively better than NEC |
