Infectious demyelination

POST INFECTIOUS DEMYELINATING ENCEPHALOMYELITIS, INVOLVING CEREBELLUM,CEREBRUM, AND BRAINSTEM. 

The medical school definition of multiple sclerosis (MS) is demyelination within the central nervous system that varies in space and time. The term refers to a disorder in which patches of demyelination develop during exacerbations. In the most common forms of MS, exacerbations are separated by varying periods of time in which the disease does not appear to progress. Whether progressive demyelination without clear periods of remission should be considered a form of MS is a matter of definition, about which clinicians specializing in the care of patients with this disorder have argued. Conventional medical nomenclature classifies as distinct entities a number of disorders of myelin that can mimic MS clinically. These include, for instance, the sometimes devastating demyelination localized to the pons or the demyelination that can follow infectious diseases and/or vaccinations. 

The classic example of demyelination of the CNS is multiple sclerosis (MS), in which a chronic inflammatory lesion is characterised by a sharply demarcated plaque containing preserved axons denuded of myelin. Demyelination also occurs in infectious diseases such as progressive multifocal leucoencephalopathy and acute disseminated leucoencephalitis, but it is the disseminated focal form of MS that will be addressed in this review article. 

A variety of clinical conditions may be associated with vertigo and dizziness. The etiology of these complaints may include diseases that are infectious, postinfectious, demyelinative, vascular, neoplastic, degenerative, traumatic, toxic, psychogenic, or idiopathic. Therefore symptoms of imbalance or imbalance perceived by the patient present a particular clinical challenge. Whether associated with a minor or complex disorder, motion sickness may be associated with nausea and vomiting. 

---