anal atresia

Medical Dictionary

anal atresia n.
Congenital absence of an anal opening due to the presence of a membranous septum or to complete absence of the anal canal. Also called imperforate anus, proctatresia.

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