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Annular pancreas: Radiological features of a rare case of infantile vomiting

Hajar Bennani1, Sara Azzabi1, Nizar El Bouardi1

  • 1Service de Radiologie, CHU Hassan II, Fès.

Radiology Case Reports
|October 3, 2022
PubMed

Insights

Annular pancreas is a rare cause of duodenal obstruction in infants, presenting with vomiting. Radiological imaging is key to diagnosis, with surgery offering the only effective treatment.

Area of Science:

  • Pediatric Surgery
  • Radiology
  • Gastroenterology

Background:

  • Annular pancreas is a congenital anomaly where pancreatic tissue encircles the duodenum.
  • It can lead to duodenal obstruction, particularly in infants, presenting with symptoms like vomiting.

Observation:

  • A 4-month-old girl presented with severe dehydration and postprandial vomiting since birth.
  • Abdominal ultrasound revealed gastric and duodenal dilatation with pancreatic tissue surrounding the duodenum.
  • Contrast-enhanced CT confirmed gastric and duodenal dilatation and a pancreatic ring incompletely encircling the duodenum.

Findings:

  • Radiological findings, including ultrasound and CT, were crucial in diagnosing annular pancreas as the cause of duodenal obstruction.
  • The patient underwent successful duodeno-duodenostomy, with no recurrence of symptoms.

Implications:

  • Early and accurate radiological diagnosis of annular pancreas is essential for timely intervention.
  • Surgical bypass (duodeno-duodenostomy) is the definitive treatment for symptomatic annular pancreas, leading to favorable outcomes.

Keywords:
Annular pancreasImagingPediatricsVomiting

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