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Prolapsed hyperplastic gastric polyp causing gastric outlet obstruction, hypergastrinemia, and hematemesis in an
G S Brooks1, E S Frost, C Wesselhoeft
1Department of Surgery, Rhode Island Hospital, Providence.
Insights
A gastric polyp intussuscepted into the duodenum in an infant, causing obstruction and hypergastrinemia. This rare cause of gastric outlet obstruction highlights the importance of considering unusual pathologies.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Medical Imaging
Background:
- Gastric outlet obstruction is a critical condition in infants, often requiring surgical intervention.
- Duodenal duplication cysts are a known cause of pediatric gastrointestinal obstruction.
Observation:
- An infant presented with hematemesis and signs of gastric outlet obstruction.
- Radiological studies suggested a duodenal duplication cyst preoperatively.
- Surgical exploration revealed a gastric polyp intussuscepted into the duodenum.
Findings:
- The intussuscepted gastric polyp caused the duodenal obstruction.
- The patient developed hypergastrinemia due to gastric mucosa exposure to the alkaline duodenal environment.
Implications:
- This case underscores the need to consider gastric polyp intussusception as a differential diagnosis for infant gastric outlet obstruction.
- Understanding the pathophysiology of hypergastrinemia in this context is crucial for patient management.
Abstract:
An infant presented with hematemesis and gastric outlet obstruction. Preoperative diagnosis of duodenal duplication cyst was based on a collaboration of radiological studies. At exploration the patient was found to have a gastric polyp that had intussuscepted into the duodenum leading to obstruction and hypergastrinemia secondary to gastric mucosa in the duodenal alkaline environment.