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Updated: Jun 2, 2026

Laparoscopic Choledochal Cyst Excision and Roux-en-Y Choledochojejunostomy in Adults
Published on: February 28, 2025
[Arachnoid cyst associated with pyloric stenosis in a young boy]
Smaranda Diaconescu1, Gabriela Păduraru, O Bărbuţă
1Facultatea de Medicină, Clinica a V- Pediatrie-Gastroenterologie, Universitatea de Medicină si Farmacie Gr.T. Popa Iaşi.
Insights
This case highlights a rare co-occurrence of an arachnoid cyst and pyloric stenosis in a child. Early endoscopy is crucial to avoid misdiagnosis and mistreatment of gastrointestinal issues.
Area of Science:
- Pediatric Surgery
- Pediatric Neurosurgery
- Gastroenterology
Background:
- Presents a rare case of a three-year-old boy with concurrent arachnoid cyst and decompensated pyloric stenosis.
- The patient initially presented with gastrointestinal bleeding and anemia after aspirin intake for fever.
Observation:
- Initial symptoms included hematemesis, melena, and anemia, leading to intensive care.
- A computed tomography (CT) scan revealed an arachnoid cyst, prompting neurosurgical intervention.
- Post-neurosurgery, persistent vomiting led to an upper gastrointestinal series, diagnosing decompensated pyloric stenosis.
Findings:
- The patient had an arachnoid cyst in the right middle cranial fossa and aspirin-induced peptic ulcer disease.
- Initial misdiagnosis occurred due to the prominent neurological symptoms, delaying gastrointestinal evaluation.
- Surgical interventions for both conditions (cyst fenestration and antrectomy) resulted in the child's recovery.
Implications:
- Emphasizes the importance of a comprehensive diagnostic approach in pediatric patients with complex presentations.
- Highlights the potential for misdiagnosis when neurological and gastrointestinal symptoms overlap.
- Underscores the critical role of early upper digestive endoscopy in evaluating persistent vomiting and gastrointestinal bleeding in children.
Abstract:
An unusual association between an arachnoid cyst and a decompensated pyloric stenosis in a three years-old boy is presented. The little patient was admitted into hospital with haematemesis, melena, influenced generally condition and acute posthemorrhagic anaemia following aspirin intake for hypertermia. Specific intensive care was successful and the little patient was discharged but without an upper digestive endoscopy(parents refusal, technical reasons). After one week he returned with progressive worsening vomitings and an intracranial hypertension was suspected. CT documented an arachnoid cyst in the right middle cranial fossa and the patient is directed to the Neurosurgical Clinic where a cyst fenestration was done. Subsequent to operation the vomitings reinstaled with severe dehydration and an upper GI series showed a decompensated pyloric stenosis. He was operated on underwenting an antrectomy. Finally the child recovered with good short and long-term evolution. The coincidental presence of an intracranial congenital mass and a complicated aspirin-induced peptic ulcer in this young patient, misleaded us and in the lack of an early endoscopy an intempestive neurosurgical operation was initially done.
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