Differential Diagnosis for Newborn with Bilious Vomiting
Life-Threatening Diagnoses (Require Urgent Surgical Evaluation)
- Bilious vomiting in a newborn is a surgical emergency until proven otherwise, with midgut volvulus being the most critical time-sensitive diagnosis that must be excluded immediately, according to the American College of Radiology 1, 2
- Midgut volvulus accounts for 20% of bilious vomiting cases in the first 72 hours of life, as reported by the American College of Radiology 1, 2
- Duodenal atresia is the most common proximal obstruction, presenting with a "double bubble" sign on radiograph, as described by the American College of Radiology 1, 2, 3
- Jejunoileal atresia presents with a "triple bubble" sign and absent distal gas, according to the American College of Radiology 1, 2, 3
- Vomiting typically begins within the first 2 days of birth and is bilious, as reported by the American College of Radiology 1, 2
- About 15% of cases may present with nonbilious vomiting despite proximal obstruction, as noted by the American College of Radiology 1, 2
Other Surgical Conditions
- Meconium ileus may require therapeutic enema rather than immediate surgery, as suggested by the American College of Radiology 1
- Hirschsprung disease requires rectal biopsy for definitive diagnosis, according to the American College of Radiology 1
- Small bowel obstruction can be due to internal hernia, duodenal web, or obstructing duplication cyst, as reported by the American College of Radiology 1, 2
Lower GI Causes
- Meconium plug syndrome presents with distal obstruction pattern and often resolves with observation or therapeutic enema, as described by the American College of Radiology 1, 2
- Left-sided microcolon is part of the lower GI causes in newborns with bilious vomiting, according to the American College of Radiology 1, 2
Acquired Conditions
- Intussusception may present with crampy pain, bloody "currant jelly" stools, and progression to bilious vomiting, as reported by Praxis Medical Insights 4