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Pediatric gastric mesothelial cyst presenting with abdominal distention and pain: A case report

Ehsanullah Rasouli1, Abdullah Wahdat1, Ali Rahimi2

  • 1Aria Apollo Hospital, Herat, Afghanistan.

International Journal of Surgery Case Reports
|July 18, 2025
PubMed

Insights

Pediatric gastric mesothelial cysts are rare and can mimic other abdominal masses. Histopathological confirmation is crucial for accurate diagnosis and management of these rare gastric cysts.

Area of Science:

  • Pediatric Surgery
  • Gastroenterology
  • Pathology

Background:

  • Mesothelial gastric cysts are exceptionally rare in children, often presenting diagnostic challenges.
  • These cysts can be mistaken for more common pediatric abdominal masses like mesenteric or duplication cysts.

Observation:

  • A 3-year-old boy presented with a 6-month history of abdominal distention and pain.
  • Imaging revealed a large cystic mass, initially presumed to be mesenteric.
  • Intraoperative findings confirmed the cyst's origin from the gastric wall.

Findings:

  • Histopathological examination definitively diagnosed a mesothelial cyst.
  • The cyst was unilocular, lined by mesothelial cells, and lacked atypia or mitoses.
  • Complete surgical excision was performed.

Implications:

  • This case highlights the importance of considering rare gastric pathologies in pediatric abdominal masses.
  • Accurate diagnosis relies heavily on histopathological analysis.
  • Surgical excision is the definitive treatment for gastric mesothelial cysts, with favorable outcomes and no reported recurrence at 6 months.
Abstract

Keywords:
Abdominal cystCase reportMesothelial gastric cystPediatric surgeryRare diagnosis

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