periaortitis
(pĕr′ē-ā′ôr-tī′tĭs)- Inflammation of the adventitia of the aorta and of the tissues surrounding it.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.