ESTENOSE DE DUODENO EM LACTENTE: RELATO DE CASO

• DOI: https://doi.org/10.22533/at.ed.820811025061112

• Palavras-chave: vômitos recorrentes ; estenose duodenal ; duodenojejunostomia

• Keywords: recurrent vomiting ; duodenal stenosis ; duodenojejunostomy

• Abstract: Duodenal Stenosis in an Infant: Case Report Introduction: Intrinsic congenital intestinal obstructions, such as duodenal stenosis, are rare pediatric conditions (incidence of 1:10,000–1:40,000). Duodenal stenosis, resulting from the failure of lumen recanalization, typically manifests with vomiting. Atypical or partial clinical presentation can lead to a delayed diagnosis, challenging differential elucidation compared to more common disorders.Objective: To report the case of an infant with a delayed diagnosis of isolated congenital duodenal stenosis, describing the diagnostic journey, surgical approach, and clinical evolution.Case Report: The report describes a full-term, male infant referred at 2 months of age due to recurrent vomiting (non-bilious) since birth, associated with irritability and insufficient weight gain. Following consultation with a pediatric gastroenterologist and performing an UGI series (Upper Gastrointestinal Series - X-ray of the Esophagus, Stomach, and Duodenum), narrowing was evidenced in the antropyloric region, leading to admission for diagnostic investigation. Initially, the hypotheses were hypertrophic pyloric stenosis or duodenal obstruction. Exploratory laparotomy was chosen, confirming duodenal stenosis in the 3rd-4th portion. Following the surgical procedure, the patient showed favorable clinical evolution with recovery of weight gain and improvement in vomiting.Discussion/Evolution: The prolonged presentation, with non-bilious vomiting and delayed diagnosis at 2 months, highlights the diagnostic difficulty of partial duodenal obstructions. Surgical treatment with duodenojejunostomy was successful.Conclusion: This case report of isolated congenital duodenal stenosis, a rare condition, emphasizes the importance of etiological investigation in infants with chronic vomiting and failure to thrive. The favorable outcome after surgical correction contributes to the knowledge and clinical management in similar cases.