Biographical Note for chvostek's sign
Chvos·tek \ˈḵvȯs-ˌtek\ Franz (1835–1884), Austrian surgeon. Chvostek was a military doctor and professor at a military medical school in Vienna. In 1876 he published an article in which he announced his discovery that in a patient with tetany, tapping the optic nerve in front of the ear produces a spasm of the cheek muscles. This sign of tetany now bears his name.
Variants of chvostek's sign
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