Finger phenomenon

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Finger phenomenon

a sign of organic hemiplegia; with the patients elbow resting on a table, the patients wrist is grasped by the examiner's hand, the thumb of which is used to exert pressure on the radial side of the patients pisiform bone; if the hemiplegia is organic, some or all of the patients fingers become extended and spread out in a fanlike form.

Synonym: Gordon's sign.