Gastric hamartoma of the pylorus in an infant

Akram Aljahdali1, Angelica Oviedo, Geoffrey K Blair

  • 1Division of Pediatric Surgery, Department of Surgery, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada V6H 3V4. ajahdali@cw.bc.ca

Insights

Gastric hamartomas, rare benign tumors, can cause symptoms. A rare pyloric adenomyoma in an infant mimicked a common condition, highlighting diagnostic challenges.

Area of Science:

  • Gastroenterology
  • Pediatric Surgery
  • Pathology

Background:

  • Gastric hamartomas (adenomyomas) are uncommon, benign gastric wall lesions.
  • While variable symptoms occur, pure pyloric adenomyomas are exceptionally rare.
  • Infantile hypertrophic pyloric stenosis is a common cause of gastric outlet obstruction in infants.

Observation:

  • A 13-day-old infant presented with symptoms suggestive of gastric outlet obstruction.
  • Imaging and clinical presentation mimicked infantile hypertrophic pyloric stenosis.
  • The infant was diagnosed with a gastric hamartoma located at the pylorus.

Findings:

  • The case highlights an extremely rare presentation of a gastric hamartoma in the pylorus.
  • The lesion caused significant gastric outlet obstruction.
  • Histopathological confirmation of adenomyoma was obtained.

Implications:

  • This case underscores the importance of considering rare diagnoses in infants with gastric outlet obstruction.
  • Accurate diagnosis is crucial to differentiate hamartomas from more common conditions like pyloric stenosis.
  • Understanding these rare entities aids in appropriate clinical management and surgical planning.

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