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Congenital segmental dilatation of the intestine in a neonate
  1. Hikari Nebashi1,
  2. Momoko Inoue1,
  3. Syuuichi Ashizuka2 and
  4. Osamu Samura1
  1. 1Obstetrics and Gynecology, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
  2. 2Pediatric Surgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
  1. Correspondence to Dr Hikari Nebashi; nebashihikari{at}


A woman in her 30s at 29 weeks of gestation was diagnosed with a fetal abdominal cyst and polyhydramnios. As the cyst gradually increased in size, an elective caesarean section was performed at 38 weeks of gestation. The neonate experienced respiratory distress due to tense abdominal distension shortly after birth. An emergency laparotomy was performed. The intestinal tract was markedly dilated and contiguous with the cyst. The small bowel distal to the dilated intestine had herniated through the defect. The dilated segment was resected, and an ileostomy was created. The operative and histopathological findings suggested segmental dilatation of the intestine (SDI). SDI is a rare gastrointestinal disorder presenting during the neonatal period. It can cause respiratory failure in newborns by compression owing to its large size. SDI should be considered in the differential diagnosis of relatively large abdominal cysts, and collaboration with paediatric surgeons and neonatologists is necessary for successful outcomes.

  • Ultrasonography
  • Obstetrics and gynaecology
  • Pregnancy
  • Congenital disorders

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  • Contributors The following authors were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms and critical revision for important intellectual content: HN, MI and SA. The following authors gave the final approval of the manuscript: OS.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.