Rectal Duplication Cyst: A Rare Cause of Rectal Prolapse in a Toddler

Samreen Khushbakht1, Anwar ul Haq1

  • 1Department of Pediatric Surgery, Shifa International Hospital, Islamabad.

Insights

Rectal duplication cysts, rare congenital anomalies, typically present with pressure effects. This case highlights rectal prolapse and bleeding as unusual initial symptoms in a child.

Area of Science:

  • Pediatric Surgery
  • Gastroenterology
  • Congenital Anomalies

Background:

  • Rectal duplication cysts are uncommon congenital gastrointestinal anomalies, accounting for 4% of such conditions.
  • These cysts usually manifest in childhood with symptoms like constipation, tenesmus, or bleeding, often due to ectopic gastric mucosa.
  • Typical presentations involve mass or pressure effects within the rectal area.

Observation:

  • A 4-year-old boy presented with rectal prolapse and rectal bleeding, atypical symptoms for a rectal duplication cyst.
  • Physical examination revealed a soft mass on the posterior rectal wall.
  • Computed Tomography (CT) scan confirmed a cystic mass in the posterior rectal wall.

Findings:

  • The rectal duplication cyst was successfully excised via a trans-anal approach.
  • Postoperative recovery for the patient was uneventful.
  • Histopathological analysis confirmed the diagnosis of a rectal duplication cyst.

Implications:

  • This case underscores the importance of considering rectal duplication cysts in the differential diagnosis of pediatric rectal prolapse and bleeding.
  • Highlights the variability in clinical presentation of congenital rectal anomalies.
  • Suggests that trans-anal excision can be an effective treatment for selected rectal duplication cysts.

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