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choristoma in Medicine

choristoma

(kôr′ĭ-stōmə)
n.
  1. A mass formed by the faulty development of tissue of a type not normally found at that site.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.