Hirschsprung's Disease

	Failure to pass meconium in the first 48 hours of life or chronic constipation is one of the common clinical presentations of Hirschsprung's disease
	Abdominal distension, one of the common clinical presentations of Hirschsprung's disease
	Abdominal distension, one of the common clinical presentations of Hirschsprung's disease
	Bilious vomiting, the most common presentation in gut obstruction including Hirschsprung's disease
	Operative finding of transitional zone in Hirschsprung's disease at rectosigmoid junction
	Operative finding of transitional zone in Hirschsprung's disease at upper rectum
	Operative finding of transitional zone in Hirschsprung's disease at splenic flexure
	Operative finding of transitional zone in Hirschsprung's disease at upper rectum
	The transitional zone is a cone-like part of bowel ( arrow ) connected between the contracted diseased segment ( below the arrow ) and the normal dilated bowel (above the arrow)
	Plain X-ray ( Acute abdomen series ) in Hirschsprung's disease revealed dilatation of bowel down to sigmoid colon