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UHTHOFF SYMPTOM
A transient temperature-dependent numbness, weakness, or loss of vision. Conduction stops in any nerve if the temperature gets too tall. In a damaged nerve, e.g., by demyelinization, this shutdown temperature is lowered, and may approachusualbody temperature. Transient neurologicaldysfunction may then appear with a hot shower, exercice, or fever.
Synonym: Uhthoff syndrome.