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Life expectancy in MS patients is 5 to 10 years lower than unaffected people. [15] MS is an inflammatory demyelinating disease of the central nervous system (CNS) that develops in genetically susceptible individuals after exposure to unknown environmental trigger(s).
When a patient presents with a non-length-dependent demyelinating polyneuropathy which either develops chronically over several months or progresses over more than a month, CIDP may be diagnosed. There may be a secondary progressive course along with a progressive course that follows, or it may be relapsing and remitting.
Inflammatory demyelinating diseases (IDDs), sometimes called Idiopathic (IIDDs) due to the unknown etiology of some of them, are a heterogenous group of demyelinating diseases - conditions that cause damage to myelin, the protective sheath of nerve fibers - that occur against the background of an acute or chronic inflammatory process.
Demyelinating diseases of the CNS can be classified according to their pathogenesis into five non-exclusing categories: demyelination due to inflammatory processes, viral demyelination, demyelination caused by acquired metabolic derangements, hypoxic–ischaemic forms of demyelination and demyelination caused by focal compression. [3]
The name comes from a traditional classification of demyelinating diseases in two groups: demyelinating myelinoclastic diseases and demyelinating leukodystrophic diseases. In the first group, a normal and healthy myelin is destroyed by a toxic, chemical, or autoimmune substance. In the second group, myelin is abnormal and degenerates. [17]
The ratio is much higher than that in certain areas of the world. While the early stages of multiple sclerosis are less discernible, the chronic stages can greatly reduce an individual's quality of life by limiting motor function. The demyelinating disease attacks the myelin of axons in the central nervous system through autoimmune defects.
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Central pontine myelinolysis; Other names: Osmotic demyelination syndrome, central pontine demyelination: Axial fat-saturated T2-weighted image showing hyperintensity in the pons with sparing of the peripheral fibers, the patient was an alcoholic admitted with a serum Na of 101 treated with hypertonic saline, he was left with quadriparesis, dysarthria, and altered mental status