Uhthoff sign

Uhthoff sign definition - medical

Uht·hoff sign (o͞otˈhŏf)

noun
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® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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