Neonatal pneumoperitoneum and meconium-stained peritoneal fluid of uncertain cause.

A 2-day-old male infant was referred to hospital because he was continually moaning. Massive pneumoperitoneum was observed on plain radiographs on the day of admission. This case is unique in that the massive pneumoperitoneum with meconium-stained peritoneal fluid was not associated with any evidence of bowel perforation seen on laparotomy.