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Microcolon in the absence of small bowel obstruction in the newborn
1Department of Radiology, Schneider Children's Hospital, Long Island Jewish Medical Center, New Hyde Park, NY 11042.
Abstract:
Microcolon is a manifestation of intestinal obstruction in utero, and in the overwhelming majority of cases it accompanies low small bowel obstruction. Two cases of congenital abdominal masses, an ileal duplication, and a cystic mesenchymal hamartoma of the liver caused microcolon although the bowel was intrinsically normal. Bowel compression in utero may also lead to neonatal microcolon.
Insights
Microcolon, a small colon, can occur from in utero intestinal obstruction. Congenital abdominal masses can cause microcolon even with normal intestines, highlighting potential causes of neonatal microcolon.
Area of Science:
- Pediatric Surgery
- Developmental Biology
- Gastroenterology
Background:
- Microcolon is a recognized indicator of intrauterine intestinal obstruction.
- It is most frequently associated with distal small bowel obstruction.
Observation:
- Two cases presented congenital abdominal masses: an ileal duplication and a hepatic mesenchymal hamartoma.
- These masses induced microcolon despite intrinsically normal bowel anatomy.
Findings:
- Congenital abdominal masses can precipitate microcolon through extrinsic compression.
- Neonatal microcolon can result from intrauterine bowel compression.
Implications:
- This expands the differential diagnosis for microcolon beyond intrinsic bowel abnormalities.
- Understanding extrinsic compression mechanisms is crucial for diagnosing and managing neonatal microcolon.
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