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Meconium pseudocyst with particular pathologic findings: a case report and review of the literature

Masashi Minato1, Tadao Okada, Hisayuki Miyagi

  • 1Department of Pediatric Surgery, Hokkaido University Hospital, Sapporo, Japan. greatmarkn@yahoo.co.jp

Journal of Pediatric Surgery
|April 14, 2012
PubMed

Insights

Meconium pseudocyst, a rare condition causing abdominal cysts in neonates, can be successfully treated with single-stage intestinal resection and primary anastomosis. This approach differs from typical meconium peritonitis management.

Area of Science:

  • Neonatal surgery
  • Pediatric gastroenterology
  • Surgical pathology

Background:

  • Meconium peritonitis arises from in utero bowel perforation and meconium extravasation.
  • Cystic-type meconium peritonitis forms a fibrous-walled cavity, distinct from meconium pseudocysts.
  • Meconium pseudocysts possess a muscle layer continuous with normal intestine, identified via histopathology.

Observation:

  • This report details a rare case of a neonate with a meconium pseudocyst.
  • The neonate presented with a large abdominal cyst containing air and fluid.
  • Meconium peritonitis is a key differential diagnosis for such presentations.

Findings:

  • The neonate's meconium pseudocyst was successfully treated with a one-stage resection and primary anastomosis.
  • Histopathologic features are crucial for distinguishing meconium pseudocysts from cystic-type meconium peritonitis.
  • Few cases of meconium pseudocysts have been documented in medical literature.

Implications:

  • One-stage intestinal resection with primary anastomosis may be the recommended treatment for meconium pseudocysts.
  • Accurate histopathologic diagnosis is vital for guiding surgical strategy.
  • This case highlights a potentially effective treatment for a rare neonatal surgical condition.

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