Synonyms
Aganglionic megacolon; Congenital megacolon
Definition
Hirschsprung’s disease is a common cause of neonatal intestinal obstruction due to improper muscle movement in the bowel. Patients are unable to defecate because of the lack of ganglion cells. It is a congenital condition; therefore, it is present from birth. Newborns will often have abdominal distension, while older children may suffer from chronic constipation. Hirschsprung’s disease results from the absence of ganglion cells within the myenteric and submucosal plexus of the rectum and/or colon. Colonic ganglion cells are derived from the neural crest and migrate caudally with the vagal nerve fibers along the intestine. These ganglion cells arrive in the proximal colon by 8 weeks of gestation and in the rectum by 12 weeks of gestation. The arrest in ganglionic migration leads to an aganglionic segment. This results in clinical Hirschsprung’s disease.
Clinical Features
Incidence
Its incidence is estimated to be 1 in 5,000...
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References and Further Reading
Gershon, M. D., & Ratcliffe, E. M. (2004). Developmental biology of the enteric nervous system: Pathogenesis of Hirschsprung’s disease and other congenital dysmotilities. Seminars in Pediatric Surgery, 13, 224–235.
Kapur, R. P. (2009). Practical pathology and genetics of Hirschsprung’s disease. Seminars in Pediatric Surgery, 18, 212–223.
Kenny, S. E., Tam, P. K., & Garcia-Barcelo, M. (2010). Hirschsprung’s disease. Seminars in Pediatric Surgery, 19, 194–200.
Moore, S. W., & Johnson, G. (2005). Acetylcholinesterase in Hirschsprung’s disease. Pediatric Surgery International, 21, 255–263.
Swenson, O. (2002). Hirschsprung’s disease: A review. Pediatrics, 109, 914–918.
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Özer, E. (2017). Hirschsprung’s Disease. In: Carneiro, F., Chaves, P., Ensari, A. (eds) Pathology of the Gastrointestinal Tract. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-40560-5_1485
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DOI: https://doi.org/10.1007/978-3-319-40560-5_1485
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