pseudocyst

[ sōōdō-sĭst′ ]

n.

An abnormal sac that resembles a cyst but has no membranous lining.adventitious cyst false cyst
A cyst whose wall is formed by a host cell and not by a parasite.
A cyst consisting of a host cell enclosing a mass of Toxoplasma parasites, usually found in the brain.

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