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The demyelination and scarring of axons in the neurons of the nervous system can affect their conduction properties and seriously harm the normal communication of the brain with the rest of the body. Multiple sclerosis (MS) is a disease that causes this deterioration of the myelin sheath. There isn't a unique test to diagnose MS and several ...
“Alzheimer’s disease has a long pre-symptomatic period; Alzheimer’s-related changes take place in the brain 10, 15, even 20 years before the onset of memory and thinking symptoms.
Unusual types of MS have been described; these include Devic's disease, Balo concentric sclerosis, Schilder's diffuse sclerosis, and Marburg multiple sclerosis. There is debate on whether they are MS variants or different diseases. [31] Multiple sclerosis behaves differently in children, taking more time to reach the progressive stage. [5]
Electromyoneurography is a technique that uses surface electrical probes to obtain electrophysiological readings from nerve and muscle cells. The nerve activity is generally recorded using surface electrodes, stimulating the nerve at one site and recording from another with a minimum distance between the two.
The current diagnosis criteria for MS do not allow doctors to give an MS diagnosis until a second attack takes place. Therefore, the concept of "clinical MS", for an MS that can be diagnosed, has been developed. Until MS diagnosis has been established, nobody can tell whether the disease one is dealing with is MS. [citation needed]
Diagnostic criteria refers to a specific combination of signs, symptoms, and test results that the clinician uses in an attempt to determine the correct diagnosis. [ 13 ] : 320 Fluid-attenuated inversion recovery (FLAIR) uses a pulse sequence to suppress cerebrospinal fluid and show lesions more clearly, and is used for example in multiple ...
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