congenital megacolon

Medical Dictionary

congenital megacolon n.
Congenital dilation and hypertrophy of a segment of the colon due to an absence or marked reduction in the number of motor neurons innervating its muscular coat, resulting in extreme constipation and, if untreated, growth retardation. Also called Hirschsprung's disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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WordNet
congenital megacolon

noun
congenital condition in which the colon does not have the normal network of nerves; there is little urge to defecate so the feces accumulate and cause megacolon [syn: Hirschsprung's disease
WordNet® 3.0, © 2006 by Princeton University.
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