Abstract
Background: Duplications of the alimentary tract are rare congenital malformations, out of which, true pyloric duplications constitute only 2.2%. They present with non-bilious vomiting and mimic hypertrophic pyloric stenosis (HPS). Pyloric duplications that are intraluminal are not separately visible at laparotomy, making their diagnosis difficult. Case presentation: Our case is a neonate with an intraluminal pyloric duplication cyst who presented with recurrent vomiting. The radiological evaluation suggested a duplication cyst medial to the second part of the duodenum towards the stomach’s lesser curvature with features of gastric outlet obstruction. Intraoperatively, a cystic mass of 1 x 2 cm intraluminally was found on opening the pylorus which was excised and pyloroplasty was done. Postoperatively the baby was discharged in a stable condition. Conclusion: Intraluminal pyloric duplication cysts are rare and the clinical presentation mimics HPS. They should be considered as a differential diagnosis in a neonate presenting with features of gastric outlet obstruction.
Highlights
Duplications of the alimentary tract along the pylorus are rare congenital malformations, with the intraluminal variants being even rarer
[2] In this report, we share the case of a neonate presenting with features of gastric outlet obstruction due to a pyloric duplication cyst that was intraluminal
The differential diagnosis considered was any of the causes of non-bilious vomiting in a term neonate like gastroesophageal reflux, metabolic disorders, hypertrophic pyloric stenosis (HPS), antral web, pyloric atresia, or antropyloric duplication cysts
Summary
Duplications of the alimentary tract along the pylorus are rare congenital malformations, with the intraluminal variants being even rarer. [2] In this report, we share the case of a neonate presenting with features of gastric outlet obstruction due to a pyloric duplication cyst that was intraluminal. From 3rd day of life, the child developed non-bilious vomiting after feeds, which was non-projectile, the feeding was normal. The child was brought to our center on day 9 of life with persistent non-bilious vomiting.
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