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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.
Abstract:
Rectal duplication cysts are rare congenital anomalies. They constitute only 4% of the total gastrointestinal anomalies. They usually present in childhood. The common presenting symptoms are mass or pressure effects like constipation, tenesmus, urinary retention, local infection or bleeding due to presence of ectopic gastric mucosa. We are reporting a rare presenting symptom of rectal duplication cyst in a 4-year-old boy/toddler who presented with rectal prolapse. He also had bleeding per rectum. Rectal examination revealed a soft mass palpable in the posterior rectal wall. CT scan showed a cystic mass in the posterior wall of the rectum. It was excised trans-anally and the postoperative recovery was uneventful. Biopsy report showed rectal duplication cyst.
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