Kleist sign

Kleist sign

(klīst) [Karl Kleist, Ger. physician, 1879–1960] Involuntary grasping of an examining hand by a patient with frontal lobe disease or damage to the thalamus.

Kleist,

Karl, German. German neurologist, 1879–. Kleist apraxia - inability to draw or write or construct two- and three-dimensional figures using matchsticks. Synonym(s): Mayer-Gross apraxiaKleist sign - when gently raised by examiner, patient's fingers hook into examiner's fingers; indicative of thalamic and frontal lesions.