Adult Hirschsprung's disease presenting as chronic constipation: a case report.

Background: Hirschsprung's disease is a congenital disorder identified by the absence of ganglion cells at the Meissner's plexus of the submucosa and Auerbach's plexus of the muscularis. This disease can be found in approximately 1 in 5000 live births. It is a congenital disorder that is rarely diagnosed in adults, where 95% of cases are diagnosed in infants aged under 1 year old.