panencephalitis
(păn′ĕn-sĕf′ə-lī′tĭs)- Encephalitis that affects both the gray and white matter of the brain, resulting in progressive loss of mental and motor functions.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.