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Hoffman's Sign: Sensitivity and Specificity

Introduction: None written. Excerpt from the entry in Focal Cerebral Hemispheric Lesion:
"The test involves tapping the nail or flicking the terminal phalanx of the third or fourth finger. A positive response is seen with flexion of the terminal phalanx of the thumb."

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Associated Diagnoses:

Focal Cerebral Hemispheric Lesion

4% sensitive, 100% specific