Difference between revisions of "Hirschsprung's disease"

(Differential Diagnosis)
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==Differential Diagnosis==
==Differential Diagnosis==
*Meconium ileus
{{Infant Constipation}}
**Cystic fibrosis
*Imperforate anus
*Bowel obstruction

Revision as of 17:49, 9 July 2016


  • Congenital aganglionosis of colon
    • Usually rectosigmoid area
      • Short segment affects rectum and small amount of distal colon
      • Long segment affects more of colon, proximal intestine
    • Rarely involves more proximal intestine
  • 30% associated with a syndrome
  • 1:5,000 live births

Clinical Features

  • Delayed meconium passage after birth
  • 80% present within first month of life
    • May have delayed presentation in milder disease
  • Chronic constipation
    • Encopresis
    • Rectal prolapse
  • Obstruction symptoms
    • Neonatal toxic megacolon may occur
      • Distended abdomen, bilious vomiting, enterocolitis
  • Enterocolitis
    • Diarrhea, rectal bleeding, abdominal distention, fever

Differential Diagnosis

Infant Constipation


  • KUB distended colon, empty rectum
    • Enterocolitis: distention, bowel wall thickening
    • Obstruction: air fluid levels
  • Diagnosis requires rectal biopsy (consult GI)


  • Consult pediatric surgeon for operative management
  • Treat enterocolitis with broad spectrum antibiotics


  • Admit if symptoms of obstruction, enterocolitis

See Also

External Links