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223 Possible Causes for Cogwheel Rigidity

  • Parkinson's Disease

    Resting tremor of extremity Bradykinesia Cogwheel rigidity of limbs Masked facies (lack of expression or facial animation) Postural instability Micrographia Short stepped[] Rigidity Rigidity is characterised by increased resistance, usually accompanied by the “cogwheel” phenomenon, particularly when associated with an underlying tremor, present[]

  • Methylphenyltetrahydropyridine

    rigidity of the upper extremities.[] cogwheel rigidity postural instability shuffling gait mask-like facies depression dementia usually a late finding Evaluation Clinical diagnosis Histology loss of pigmented[] rigidity in the upper extremities.[]

  • Neuroleptic Malignant Syndrome

    Motor abnormalities: Patients may have generalized, severe muscle rigidity (sometimes with simultaneous tremor, leading to cogwheel rigidity), or, less often, dystonias, chorea[] We present video evidence of the effectiveness of dantrolene in reducing muscular rigidity, tremor and cogwheel phenomena in a patient with NMS.[] Muscle rigidity, cogwheel phenomena and tremor disappeared within 10 min (video footage is available in Additional file 2 ), but they gradually reappeared within an hour.[]

  • Postencephalitic Parkinson Disease

    Cogwheel rigidity will be appreciated with passive movement of the patients limb.[] Parkinson's disease is recognized by the presence of at least three of four cardinal signs: resting tremor, cogwheel rigidity, bradykinesia/akinesia, and postural reflex impairment[] The abnormal tone is referred to as lead-pipe and cogwheel rigidity .[]

  • Basal Ganglia Lesion

    - cogwheel rigidity Bradykinesia - freezing Hypokinesia/akinesia - reduced frequency of swallow Hypokinetic Dysarthria: Other Neuromuscular Deficits Resting tremors of head[] The rigidity has a superimposed cogwheel halting character if tremor is part of the syndrome.[] Wilson’s Diseas TBI - repeated head trauma as in boxers Infectious - viral encephalitis Hypokinetic Dysarthria: Speech Musculature Deficits Resting tremor in jaw, lip, tongue Rigidity[]

  • Parkinsonian Disorder

    (cogwheel and lead-pipe rigidity), festinant gait, stooped posture, mask-like facies and eventual progressive dementia par·kin·son·ism ( pahr'kin-sŏn-izm ) Neurologic syndrome[] The rigidity has a superimposed cogwheel halting character if tremor is part of the syndrome.[] […] characterized by insidious onset of rhythmical muscular tremors at rest (pill-rolling tremor; 4-6 Hz), paucity and slowness of movement (hypokinesia, bradykinesia) and generalized rigidity[]

  • Juvenile Paralysis Agitans of Hunt

    The rigidity has a rhythmic quality referred to as cogwheel rigidity (Negro’s sign), presumably due to the superimposition of the tremor.[] Cogwheel rigidity is thought to be due to the combination of rigidity and tremor.[] Major features Resting tremor in hands, arms, legs, jaw, and face Bradykinesia Rigidity- cogwheel or lead-pipe Minor features Bradyphrenia Speech abnormalities Depression[]

  • Basal Ganglia Mass Lesion

    In some patients, this rigidity is coupled with tremors and is called cogwheel rigidity, as moving the limb feels to the clinician like the catching and release of gears.[] The rigidity has a superimposed cogwheel halting character if tremor is part of the syndrome.[] […] ratchety movement due to superimposition of tremor on rigidity coital headache indomethacin-responsive headache disorder characterized by sudden, severe, throbbing, occipital[]

  • Carbon Monoxide Poisoning

    In acute poisoning, common abnormalities of posture and tone are cogwheel rigidity, opisthotonus and flaccidity or spasticity.[]

  • Dysphonia due to Muscle Weakness

    Rigidity Due to increased muscle tone the limbs may be difficult to maneuver by the physician. Cogwheel rigidity is seen in patients with Parkinson’s disease.[]

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