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Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease.
Creutzfeldt–Jakob disease (CJD), also known as subacute spongiform encephalopathy or neurocognitive disorder due to prion disease, is a fatal neurodegenerative disease. [ 4 ] [ 1 ] Early symptoms include memory problems, behavioral changes, poor coordination, and visual disturbances. [ 4 ]
Myoclonus is usually classified physiologically to optimize treatment. Myoclonus is a precursor effect to myoclonus dystonia and most commonly begins in childhood or adolescence. [4] [5] Myoclonus is classified as cortical, subcortical, peripheral or spinal. Cortical myoclonus is the most common of these four and affects the upper limbs and face.
CJD Creutzfeldt–Jakob disease: CKD Chronic kidney disease: CLOVES syndrome Congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and skeletal/spinal abnormalities syndrome CML Chronic myelogenous leukemia: CMs Chiari malformations: CMT disease Charcot–Marie–Tooth disease: CMT1A Charcot–Marie–Tooth disease type 1A CMT1B
While many causes of lower left abdominal pain can be managed at home through lifestyle changes and over-the-counter remedies, persistent or severe symptoms require professional medical evaluation ...
vCJD is a separate condition from classic Creutzfeldt–Jakob disease (though both are caused by PrP prions). [9] Both classic and variant CJD are subtypes of Creutzfeldt–Jakob disease. There are three main categories of CJD disease: sporadic CJD, hereditary CJD, and acquired CJD, with variant CJD being in the acquired group along with ...
Ramsay Hunt syndrome type 1 is a rare, degenerative, neurological disorder characterized by myoclonus epilepsy, intention tremor, progressive ataxia and occasionally cognitive impairment [1] It has also been alternatively called dyssynergia cerebellaris myoclonica , [ 2 ] [ 3 ] dyssynergia cerebellaris progressiva , [ 4 ] dentatorubral ...
Palatal myoclonus is a rare condition in which there are rhythmic jerky movements or a rapid spasm of the palatal (roof of the mouth) muscles. Chronic clonus is often due to lesions of the central tegmental tract (which connects the red nucleus to the ipsilateral inferior olivary nucleus ).