uhthoff sign

Medical Dictionary

Uhthoff sign Uht·hoff sign (ōōt'hŏf)
An indication of multiple sclerosis in which vasodilation from exposure to heat or from exertion may cause transient visual impairment or weakness.

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