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Normally two different kind of lesions appear on a normal MRI: T2-hypertense lesions and T1-hypointense. The first one are demyelinating lesions and appear brighter than the surroundings in T2-MRI. The T1-hypointense are areas less dense than the surrounding NAW, and appear black on T1-MRI. They are mainly axonal degeneration areas.
It is not known what causes MS. Several problems appear together with the white matter lesions, like cortical lesions and normal-appearing tissues. Several theories have been proposed to explain it. Some areas that appear normal under normal MRI look abnormal under special MRI, like magnetisation transfer MTR-MRI.
Main symptoms of multiple sclerosis Symptoms and findings in multiple sclerosis. Multiple sclerosis can cause a variety of symptoms varying significantly in severity and progression among individuals: changes in sensation (hypoesthesia), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in speech or swallowing (), visual ...
According to the National Multiple Sclerosis Society, most people are diagnosed with MS between the ages of 20 and 50. However, it can occur in younger people, too. However, it can occur in ...
The nerve lesions in these people show dissemination in space with an otherwise normal neurological examination and without historical accounts of typical MS symptoms. [ 1 ] MRI findings that are consistent with multiple sclerosis have been observed in healthy people who underwent MRI scanning, and 50% go on to develop symptomatic MS, sometimes ...
Those hits on the nervous system can lead to symptoms both short-term and long-lasting. Each attack on the nervous system leaves behind lesions that, together, tell the story of MS in a person's body.
Animation showing dissemination of brain lesions in time and space as demonstrated by monthly MRI studies along a year Multiple sclerosis as seen on MRI. Multiple sclerosis is typically diagnosed based on the presenting signs and symptoms, in combination with supporting medical imaging and laboratory testing. [5]
Multiple sclerosis (MS) is a disease of the central nervous system that can cause a range of symptoms. Some people have more mild symptoms while the disease is completely disabling in others.